General Knowledge CDL Practice Tests

Prepare like a Pro!

6 timed real-life sets
Full explanations from the DMV Handbook
Submit your email at the end of the test to review answers at any time

Timed Test 1

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Question 1

You should not move a severely injured person at a crash scene unless...?

A	They are in immediate danger
B	Any of these apply
C	They are holding up traffic
D	They request you to

Question 1 Explanation:

2.20.3 – Care for the Injured If a qualified person is at the accident and helping the injured, stay out of the way unless asked to assist. Otherwise, do the best you can to help any injured parties. Here are some simple steps to follow in giving assistance: • Do not move a severely injured person unless the danger of fire or passing traffic makes it necessary. • Stop heavy bleeding by applying direct pressure to the wound. • Keep the injured person warm. Source: California Commercial Driver Handbook

Question 2

In the event of a cargo fire in a van or box trailer, you should...

A	park close to the road so other vehicles can see the danger and call for assistance
B	keep the doors shut
C	drive to the closest service station for assistance
D	keep the doors open

Question 2 Explanation:

2.21.3-Fire Fighting Knowing how to fight fires is important. Drivers who did not know what to do have made fires worse. Know how the fire extinguisher works. Study the instructions printed on the extinguisher before you need it. Here are some procedures to follow in case of fire. Pull Off the Road. The first step is to get the vehicle off the road and stop. In doing so: • Park in an open area, away from buildings, trees, brush, other vehicles, or anything that might catch fire. • Do not pull into a service station! • Notify emergency services of your problem and your location. Keep the Fire From Spreading. Before trying to put out the fire, make sure that it does not spread any further. • With an engine fire, turn off the engine as soon as you can. Do not open the hood if you can avoid it. Shoot foam through louvers, radiator, or from the vehicle’s underside. • For a cargo fire in a van or box trailer, keep the doors shut, especially if your cargo contains hazardous materials. Opening the van doors will supply the fire with oxygen and can cause it to burn very fast.

Question 3

The B:C type fire extinguisher is designed to work on burning wood, paper, and cloth

A	TRUE
B	FALSE

Question 3 Explanation:

2.21.3 – Fire Fighting Use the Right Fire Extinguisher • Figures 2.20 and 2.21 detail the type of fire extinguisher to use by class of fire. • The B: C type fire extinguisher is designed to work on electrical fires and burning liquids. • The A: B: C type is designed to work on burning wood, paper, and cloth as well. • Water can be used on wood, paper, or cloth, but do not use water on an electrical fire (can cause shock) or a gasoline fire (it will spread the flames).

Question 4

The Gross Combination Weight Rating is the...

A	total weight of a powered unit plus trailer(s) plus the cargo
B	maximum total weight of a power until plus trailer(s) plus the cargo as specified by the manufacturer
C	total weight of a single vehicle plus its load
D	maximum total weight of a single vehicle plus its load specified by the manufacturer

Question 4 Explanation:

3.2 – Cargo Weight and Balance 3.2.1 – Definitions you Should Know Gross Vehicle Weight Rating (GVWR). The value specified by the manufacturer as the loaded weight of a single vehicle.

Question 5

A top-heavy load is dangerous because it can cause

A	a rollover if you swerve around a hazard
B	all of the above
C	a rollover on a curve
D	damage to the axles or steering

Question 5 Explanation:

3.2 – Cargo Weight and Balance 3.2.3 – Do Not be Top-Heavy The height of the vehicle’s center of gravity is very important for safe handling. A high center of gravity (cargo piled up high or heavy cargo on top) means you are more likely to tip over. It is most dangerous in curves, or if you have to swerve to avoid a hazard. It is very important to distribute the cargo so it is as low as possible. Put the heaviest parts of the cargo under the lightest parts.

Question 6

What is the minimum distance between tie downs to prevent shifting of cargo?

A	Every six feet
B	Every eighteen feet
C	Every ten feet

Question 6 Explanation:

3.2 – Cargo Weight and Balance 3.3.2 – Cargo Tie-down Cargo should have at least one tie-down for each 10 feet of cargo.

Question 7

If you are transporting livestock,

A	use false bulkheads with less than a full load
B	rollover is less likely
C	give livestock enough room to roam freely
D	there is always a high center of gravity

Question 7 Explanation:

3.4 – Cargo Needing Special Attention 3.4.3 – Livestock Livestock can move around in a trailer, causing unsafe handling. With less than a full load, use false bulkheads to keep livestock bunched together. Even when bunched, special care is necessary because livestock can lean on curves. This shifts the center of gravity and makes rollover more likely.

Question 8

Why should you exercise special care when transporting dry bulk tanks?

A	High center of gravity and the load can shift
B	Low center of gravity
C	There is no particular reason why you need to exercise special care to transport dry bulk tanks
D	Dry bulk tanks are the most expensive cargo items to carry

Question 8 Explanation:

3.4 – Cargo Needing Special Attention 3.4.1 – Dry Bulk Dry bulk tanks require special care because they have a high center of gravity, and the load can shift. Be extremely cautious (slow and careful) going around curves and making sharp turns.

Question 9

When accelerating...

A	"Hammer down" when you wheels start to spin
B	Do not engage the clutch before you take your foot off the brake
C	Speed up smoothly and gradually and avoid jerking
D	Always use the parking brake to slow down

Question 9 Explanation:

2.2 – Basic Control of Your Vehicle 2.2.1 – Accelerating Do not roll back when you start. You may hit someone behind you. If you have a manual transmission vehicle, partly engage the clutch before you take your right foot off the brake. Put on the parking brake whenever necessary to keep from rolling back. Release the parking brake only when you have applied enough engine power to keep from rolling back. On a tractor-trailer equipped with a trailer brake hand valve, the hand valve can be applied to keep from rolling back. Speed up smoothly and gradually so the vehicle does not jerk. Rough acceleration can cause mechanical damage. When pulling a trailer, rough acceleration can damage the coupling. When starting a bus on a level surface with good traction, there is often no need for the parking brake. Speed up very gradually when traction is poor, as in rain or snow. If you use too much power, the drive wheels may spin. You could lose control. If the drive wheels begin to spin, take your foot off the accelerator.

Question 10

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

A	Brake fade
B	Anti-lock braking
C	Double clutching
D	Engine braking

Question 10 Explanation:

2.3 – Shifting Gears 2.3.4 – Retarders Some vehicles have “retarders.” Retarders help slow a vehicle, reducing the need for using your brakes. They reduce brake wear and give you another way to slow down. There are 4 basic types of retarders (exhaust, engine, hydraulic, and electric).

Question 11

When backing your vehicle, which of the following is NOT recommended?

A	Use the lowest reverse gear
B	Back towards the right side
C	Backing as slow as possible
D	Back and turn towards the driver's side

Question 11 Explanation:

2.2 – Basic Control of Your Vehicle 2.2.4 – Backing Safely Because you cannot see everything behind your vehicle, backing is always dangerous. Avoid backing whenever you can. When you park, try to park so you will be able to pull forward when you leave. When you have to back, here are a few simple safety rules: • Start in the proper position. • Look at your path. • Use the mirrors on both sides. • Back slowly. • Back and turn toward the driver’s side whenever possible. • Use a helper whenever possible.

Question 12

Which of the following is NOT a basic skill needed to operate a commercial vehicle?

A	Ability to back the vehicle safely
B	Ability to multitask while driving
C	Ability to accelerate
D	Ability to steer

Question 12 Explanation:

2.2 – Basic Control of Your Vehicle To drive a vehicle safely, you must be able to control its speed and direction. Safe operation of a commercial vehicle requires skill in: • Accelerating. • Steering. • Stopping. • Backing safely. Fasten your seatbelt when on the road. Apply the parking brake when you leave your vehicle.

Question 13

Which of these is NOT a rule to follow for backing safely?

A	Back slowly while using your mirrors
B	Make use of a helper as often as possible
C	Accelerate slightly to complete the backing process quickly
D	Combine backing and turning toward the driver's side whenever you can

Question 13 Explanation:

2.2.4 – Backing Safely Because you cannot see everything behind your vehicle, backing is always dangerous. Avoid backing whenever you can. When you park, try to park so you will be able to pull forward when you leave. When you have to back, here are a few simple safety rules: • Start in the proper position. • Look at your path. • Use the mirrors on both sides. • Back slowly. • Back and turn toward the driver’s side whenever possible. • Use a helper whenever possible.

Question 14

Which of the following provide extra gears on some trucks?

A	Auxiliary Transmissions
B	Both of the Above Answers
C	Multi-Speed Rear Axles

Question 14 Explanation:

2.3 – Shifting Gears 2.3.2 – Multi-Speed Rear Axles and Auxiliary Transmissions Multi-speed rear axles and auxiliary transmissions are used on many vehicles to provide extra gears. You usually control them by a selector knob or switch on the gearshift lever of the main transmission. There are many different shift patterns. Learn the right way to shift gears in the vehicle you will drive.

Question 15

Road rage is the act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others

A	TRUE
B	FALSE

Question 15 Explanation:

2.10 – Aggressive Drivers/Road Rage 2.10.1 – What is It? Aggressive driving and road rage is not a new problem. However, in today’s world, where heavy and slow-moving traffic and tight schedules are the norm, more and more drivers are taking out their anger and frustration in their vehicles. Crowded roads leave little room for error, leading to suspicion and hostility among drivers and encouraging them to take personally the mistakes of other drivers. Aggressive driving is the act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others. One sign of an aggressive driver is a driver changing lanes frequently and abruptly without notice. Road rage is operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle.

Question 16

In some emergencies, you may have to drive off the road and onto the shoulder in order to avoid collision with another vehicle. If possible, you should avoid

A	All of the above
B	using the brake until your speed has dropped to about 20 mph
C	coming to a complete stop before returning to the road
D	keeping one set of wheels on the pavement

Question 16 Explanation:

2.17 – Driving Emergencies 2.17.1 – Steering to Avoid an Accident Leaving the Road. In some emergencies, you may have to drive off the road. It may be less risky than facing an accident with another vehicle. Most shoulders are strong enough to support the weight of a large vehicle and, therefore, offer an available escape route. Here are some guidelines, if you do leave the road. • Avoid Braking. If possible, avoid using the brakes until your speed has dropped to about 20 mph. Then brake very gently to avoid skidding on a loose surface.

Question 17

If an oncoming driver has drifted to your lane, the best thing to do is...?

A	Move to the left
B	Move to the right
C	Hold whatever position you are in
D	Stay in the center of the lane

Question 17 Explanation:

2.17 – Driving Emergencies 2.17.1 – Steering to Avoid an Accident Where to Steer. If an oncoming driver has drifted into your lane, a move to your right is best. If that driver realizes what has happened, the natural response will be to return to his or her own lane.

Question 18

On older brake systems, the ABS lamp may stay on until you reach a speed in excess of...?

A	20 mph
B	15 mph
C	5 mph
D	10 mph

Question 18 Explanation:

2.18 – Antilock Braking Systems 2.18.3 – How to Know if Your Vehicle is Equipped With ABS As a system check on newer vehicles, the malfunction lamp comes on at start-up for a bulb check, and then goes out quickly. On older systems, the lamp could stay on until you are driving over 5 mph.

Question 19

You're driving a rig on which only the trailer, not the tractor, has ABS. What should you do?

A	Avoid heavy braking
B	Brake harder than usual
C	Brake normally
D	Turn off ABS

Question 19 Explanation:

2.18.5 – ABS on the Tractor Only or Only on the Trailer Having ABS on only the tractor, only the trailer, or even on only 1 axle, still gives you more control over the vehicle during braking. Brake normally.

Question 20

Which of these should you NOT do during a drive wheel skid?

A	Steer into the skid
B	Turn quickly
C	Counter steer
D	Stop braking

Question 20 Explanation:

2.17 – Driving Emergencies 2.19 – Skid Control and Recovery 2.19.2 – Correcting a Drive-Wheel Braking Skid Do the following to correct a drive-wheel braking skid. • Stop Braking. This will let the rear wheels roll again, and keep the rear wheels from sliding. • Countersteer. As a vehicle turns back on course, it has a tendency to keep on turning. Unless you turn the steering wheel quickly the other way, you may find yourself skidding in the opposite direction. Learning to stay off the brake, turn the steering wheel quickly, push in the clutch, and countersteer in a skid takes a lot of practice. The best place to get this practice is on a large driving range or “skid pad."

Question 21

If your oil pressure is below the indicated limit, you should...?

A	Note it on your report
B	Stop immediately
C	Top it up at the end of the day
D	Top it up at your next stop

Question 21 Explanation:

2.1.5 – 7-Step Inspection Method Figure 2.5 Low, Dropping, Fluctuating: STOP IMMEDIATELY! Without oil the engine can be destroyed rapidly

Question 22

Which of the following is a good thing to do when driving at night?

A	Look directly at oncoming headlights briefly
B	Keep your speed slow enough that you can stop within the range of your headlights
C	Wear sunglasses to reduce headlight glare
D	Keep your instrument lights bright

Question 22 Explanation:

2.11 – Driving at Night 2.11.4 – Vehicle Factors Headlights. At night your headlights will usually be the main source of light for you to see by and for others to see you. You cannot see nearly as much with your headlights as you see in the daytime. With low beams you can see ahead about 250 feet and with high beams about 350-500 feet. You must adjust your speed to keep your stopping distance within your sight distance. This means going slowly enough to be able to stop within the range of your headlights. Otherwise, by the time

Question 23

Which of these is the only reliable way to get rid of fatigue?

A	Open your cab windows
B	Turn up your radio
C	Stop and sleep
D	Drink caffeinated beverages

Question 23 Explanation:

2.11.2 – Driver Factors Maintaining Alertness While Driving: • Protect yourself from glare and eyestrain with sunglasses. • Keep cool by opening the window or using the air conditioner. • Avoid heavy foods. • Be aware of down time during the day. • Have another person ride with you, and take turns driving. • Take periodic breaks – about every 100 miles or 2 hours during long trips. • Stop driving and rest or take a nap. • Caffeine consumption can increase awareness for a few hours, but do not drink too much. It will eventually wear off. Do not rely on caffeine to prevent fatigue. • Avoid drugs. While they may keep you awake for a while, they will not make you alert. If you are drowsy, the only safe cure is to get off the road and sleep. If you do not, you risk your life and the lives of others.

Question 24

Should you turn the retarder off when the road is wet, icy, or snow covered?

A	Yes, whenever your drive wheels have poor traction the retarder may cause a skid
B	No, because you need more braking power then
C	No, because the engine retarder will have no effect on traction

Question 24 Explanation:

2.13.2 – Driving on Slippery Surfaces. Slippery Surfaces. Drive slowly and smoothly on slippery roads. If it is very slippery, you should not drive at all. Stop at the first safe place. • Start Gently and Slowly. When first starting, get the feel of the road. Do not hurry. • Check for Ice. Check for ice on the road, especially bridges and overpasses. A lack of spray from other vehicles indicates ice has formed on the road. Also, check your mirrors and wiper blades for ice. If they have ice, the road most likely will be icy as well. • Adjust Turning and Braking to Conditions. Make turns as gently as possible. Do not brake any harder than necessary, and do not use the engine brake or speed retarder. (They can cause the driving wheels to skid on slippery surfaces.)

Question 25

At which of these points in a rainstorm will the road be most slippery?

A	One hour after the rain starts
B	Just before the rain starts
C	20 minutes after the rain starts
D	Just after the rain starts

Question 25 Explanation:

2.6.2 – Matching Speed to the Road Surface Just After Rain Begins. Right after it starts to rain, the water mixes with oil left on the road by vehicles. This makes the road very slippery. If the rain continues, it will wash the oil away.

Question 26

Which of the following is NOT a main concern when you are driving in very hot weather?

A	Driving slowly enough to prevent overheating
B	Tar bubbling up and causing slippery roadways
C	Your seat belt causing you to sweat
D	Loose belts possibly causing overheating

Question 26 Explanation:

2.14.2 – Driving in the Heat. Watch for Bleeding Tar. Tar in the road pavement frequently rises to the surface in very hot weather. Spots where tar “bleeds” to the surface are very slippery. Go Slowly Enough to Prevent Overheating. High speeds create more heat for tires and the engine. In desert conditions the heat may build up to the point where it is dangerous. The heat will increase chances of tire failure or even fire, and engine failure. 2.14.1 – Vehicle Checks Engine Belts. Learn how to check v-belt tightness on your vehicle by pressing on the belts. Loose belts will not turn the water pump and/or fan properly. This will result in overheating. Also, check belts for cracking or other signs of wear.

Question 27

If you have to swing out to make a right-hand turn, you should do so by taking up...?

A	The left-hand lane of the road you are leaving
B	Any of these depending on circumstances
C	The left-hand lane of the road you are turning into
D	The center of the intersection

Question 27 Explanation:

2.7.6 – Space for Turns The space around a truck or bus is important in turns. Large vehicles can hit other vehicles or objects during turns because of wide turning and off-tracking. Right Turns. Here are some rules to help prevent right-turn accidents: • Turn slowly to give yourself and others more time to avoid problems. • If you are driving a truck or bus that cannot make the right turn without swinging into another lane, turn wide as you complete the turn. Keep the rear of your vehicle close to the curb. This will stop other drivers from passing you on the right. • Do not turn wide to the left as you start the turn. A following driver may think you are turning left and try to pass you on the right. You may crash into the other vehicle as you complete your turn. • If you must cross into the oncoming lane to make a turn, watch out for vehicles coming toward you. Give them room to go by or to stop. However, do not back up for them, because you might hit someone behind you. See Figure 2.13.

Question 28

The average perception time (time taken to identify a hazard) for an alert driver is one and three-quarter seconds. At 55 mph, how far will you travel in this time?

A	219 feet
B	519 feet
C	142 feet
D	319 feet

Question 28 Explanation:

5.4.4 – Stopping Distance Figure 5.6 2.6.1 – Stopping Distance Perception Distance + Reaction Distance + Braking Distance = Total Stopping Distance • Perception Distance. The distance your vehicle travels, in ideal conditions, from the time your eyes see a hazard until your brain recognizes it. Keep in mind certain mental and physical conditions can affect your perception distance. It can be affected greatly depending on visibility and the hazard itself. The average perception time for an alert driver is 1¾ seconds. At 55 mph this accounts for 142 feet traveled. Figure 2.11

Question 29

According to the Handbook, children present a hazard because

A	they often have grudges against truck drivers
B	they move quickly without checking traffic
C	they don't know that trucks are dangerous
D	they don't know how to drive

Question 29 Explanation:

2.8.3 – Drivers who are Hazards Children. Children tend to act quickly without checking traffic. Children playing with one another may not look for traffic and are a serious hazard.

Question 30

At 80 mph, the force of your impact if you strike a person or vehicle will be how much greater than if you were traveling at 20 mph?

A	4 times
B	16 times
C	8 times
D	12 times

Question 30 Explanation:

2.6.1 – Stopping Distance The Effect of Speed on Stopping Distance. The faster you drive, the greater the impact or striking power of your vehicle. When you double your speed from 20 to 40 mph the impact is 4 times greater. The braking distance is also 4 times longer. Triple the speed from 20 to 60 mph and the impact and braking distance is 9 times greater. At 60 mph, your stopping distance is greater than the length of a football field. Increase the speed to 80 mph and the impact and braking distance are 16 times greater than at 20 mph. High speeds greatly increase the severity of accidents and stopping distances. By slowing down, you can reduce braking distance.

Question 31

When crossing a railroad track, you should never...?

A	Change gear
B	Accelerate
C	Slow down
D	Do any of these things

Question 31 Explanation:

2.15.5 – Crossing the Tracks Railroad crossings with steep approaches can cause your unit to hang up on the tracks. Never permit traffic conditions to trap you in a position where you have to stop on the tracks. Be sure you can get all the way across the tracks before you start across. It takes a typical tractortrailer unit at least 14 seconds to clear a single track and more than 15 seconds to clear a double track. Do not shift gears while crossing railroad tracks.

Question 32

Tests have shown that trucks with a high center of gravity can roll over on curves when traveling...?

A	10 mph over the speed limit
B	20 mph over the speed limit
C	15 mph over the speed limit
D	At the speed limit

Question 32 Explanation:

8.2 – Driving Tank Vehicles 8.2.1 – High Center of Gravity High center of gravity means that much of the load’s weight is carried high up off the road. This makes the vehicle top-heavy and easy to roll over. Liquid tankers are especially easy to roll over. Tests have shown that tankers can turn over at the speed limits posted for curves. Take highway curves and on ramp/off ramp curves well below the posted speeds.

Question 33

If you are stopped on an incline, how can you start moving without rolling back?

A	Shift to neutral
B	Fully engage the clutch
C	Apply the parking brake
D	Aggressively pump the accelerator

Question 33 Explanation:

Question 34

What is the safest speed when you are driving in heavy traffic?

A	The speed of other traffic (if not illegal or unsafe)
B	15 mph below the speed of other traffic
C	The posted speed limit
D	As fast as possible, to get out of the way

Question 34 Explanation:

2.6.5 – Speed and Traffic Flow When you are driving in heavy traffic, the safest speed is the speed of other vehicles. Vehicles going the same direction at the same speed are not likely to run into one another. In California, speed limits are lower for trucks and buses than for cars. It can vary as much as 15 mph. Use extra caution when you change lanes or pass on these roadways. Drive at the speed of the traffic, if you can without going at an illegal or unsafe speed. Keep a safe following distance.

Question 35

If your vehicle has curved (also called convex, fisheye, spot, bugeye) mirrors, you must remember that objects will appear...?

A	Smaller and closer than they are
B	Larger and further away than they are
C	Larger and closer than they are
D	Smaller and further away than they are

Question 35 Explanation:

2.4.2 – Seeing to the Sides and Rear How to use Mirrors. Use mirrors correctly by checking them quickly and understanding what you see. When using your mirrors while driving on the road, check them quickly. Look back and forth between the mirrors and the road ahead. Do not focus on the mirrors for too long. Otherwise, you will travel quite a distance without knowing what is happening ahead. Many large vehicles have curved (convex, “fisheye,” “spot,” “bugeye”) mirrors that show a wider area than flat mirrors. This is often helpful. But everything appears smaller in a convex mirror than it would if you were looking at it directly.

Question 36

When making a turn, you should turn off your signal...?

A	Once past the apex of the turn
B	Once 75% of the turn is completed
C	As soon as you begin to turn
D	Once your turn is fully completed

Question 36 Explanation:

2.5 – Communicating 2.5.1 – Signal Your Intentions Other drivers cannot know what you are going to do until you tell them. Signaling what you intend to do is important for safety. Here are some general rules for signaling. Turns. There are 3 good rules for using turn signals: 1. Signal Early. Signal well before you turn. It is the best way to keep others from trying to pass you. 2. Signal Continuously. You need both hands on the wheel to turn safely. Do not cancel the signal until you have completed the turn. 3. Cancel Your Signal. Do not forget to turn off your turn signal after you have turned (if you do not have self-canceling signals).

Question 37

What is a problem that you can have when using your mirrors?

A	They never remain in the positions you have placed them
B	There are blind spots that your mirrors cannot show you
C	They are of no help when you are changing lanes

Question 37 Explanation:

2.4.2 – Seeing to the Sides and Rear Figure 2.7 SCHOOL BUS: 10.1.3 – Outside Left and Right Side Flat Mirrors These mirrors are mounted at the left and right front corners of the bus at the side or front of the windshield. They are used to monitor traffic, check clearances, and check for students on the sides and to the rear of the bus. There is a blind spot immediately below and in front of each mirror and directly in back of the rear bumper. The blind spot behind the bus extends 50 to 150 feet and could extend up to 400 feet depending on the length and width of the bus.

Question 38

Where should you place your reflectors when stopped on a divided highway or one lane highway?

A	20 feet, 50 feet, and 100 feet toward approaching traffic
B	100 feet, 200 feet, and 300 feet toward approaching traffic
C	50 feet, 100 feet, and 150 feet toward approaching traffic
D	10 feet, 100 feet, and 200 feet toward approaching traffic

Question 38 Explanation:

2.5.2 – Communicating Your Presence When Parked at the Side of the Road. When you pull off the road and stop, be sure to turn on the 4-way emergency flashers. This is important at night. Do not trust the taillights to give warning. Drivers have crashed into the rear of a parked vehicle because they thought it was moving normally. If you must stop on a road or the shoulder of any road, you must put out your emergency warning devices within 10 minutes. Place your warning devices at the following locations: If you must stop on or by a one-way or divided highway, place warning devices 10 feet, 100 feet, and 200 feet toward the approaching traffic. See Figure 2.8.

Question 39

Should you always be looking into the distance ahead?

A	No, you should shift your attention back and forth, near and far
B	Yes, you should be prepared for all problems ahead
C	Yes, by concentrating on the vehicle directly ahead you will be prepared for all emergencies

Question 39 Explanation:

2.4 – Seeing To be a safe driver you need to know what’s going on all around your vehicle. Not looking properly is a major cause of accidents. 2.4.1 – Seeing Ahead All drivers look ahead; but many do not look far enough ahead. Importance of Looking far Enough Ahead. Because stopping or changing lanes can take a lot of distance, knowing what the traffic is doing on all sides of you is very important. You need to look well ahead to make sure you have room to make these moves safely. How far Ahead to Look. Most good drivers look at least 12 to 15 seconds ahead. That means looking ahead the distance you will travel in 12 to 15 seconds. At lower speeds, that’s about one block. At highway speeds it is about a quarter of a mile. If you are not looking that far ahead, you may have to stop too quickly or make quick lane changes. Looking 12 to 15 seconds ahead does not mean not paying attention to things that are closer. Good drivers shift their attention back and forth, near and far. Figure 2.6 illustrates how far to look ahead.

Question 40

Which of these equals the total stopping distance?

A	Perception distance + reaction distance + braking distance
B	Reaction distance + braking distance
C	Reaction distance + braking distance + signal distance
D	Perception distance + reaction distance

Question 40 Explanation:

2.6.1 – Stopping Distance Perception Distance + Reaction Distance + Braking Distance = Total Stopping Distance

Question 41

You're pulled over for weaving between lanes. If you refuse to take an alcohol sobriety test, you may be disqualified just as if you WERE driving under the influence (DUI). This is because...

A	reasonable cause law
B	implied consent law
C	none of the above
D	higher standard of care law

Question 41 Explanation:

1.3.2 – Alcohol, Leaving the Scene of an Accident, and Commission of a Felony It is illegal to operate a CMV if your BAC is .04 percent or more. If you operate a CMV, you shall be deemed to have given your consent to alcohol testing. You will lose your CDL for at least 1 year for a first offense for: • Driving a CMV if your BAC is .04 percent or higher. • Driving a CMV under the influence of alcohol. • Refusing to undergo blood alcohol testing. Page 1-22 A driver is disqualified from operating a Commercial Motor Vehicle (CMV) if convicted of any of the following offenses while operating either a COMMERCIAL or NONCOMMERCIAL motor vehicle (non-CMV): Refusing to take DUI test required by implied consent laws

Question 42

If you do not have a Hazardous Materials Endorsement on your CDL, you can

A	transport hazardous materials if your employer lets you
B	only transport liquid hazardous materials
C	not transport any type of hazardous material
D	drive a vehicle that carries hazardous materials if it does not require placards

Question 42 Explanation:

2.23.3 – Lists of Regulated Products Identification Numbers Not all vehicles carrying hazardous materials need to have placards. The rules about placards are given in Section 9 of this handbook. You can drive a vehicle that carries hazardous materials if it does not require placards. If it requires placards, you cannot drive it unless your DL has the HazMat endorsement. See Figure 2.25.

Question 43

Suspension systems…

A	Keep the brake drums from failing
B	Keep the load secure
C	Keep the steering wheel tight
D	Keep the axles in place

Question 43 Explanation:

2.1.3 – What to Look For Suspension System Defects The suspension system holds up the vehicle and its load. It keeps the axles in place.

Question 44

What are some steering system defects to look for?

A	Steering wheel play of two degrees
B	Missing nuts, bolts, cotter keys or other parts; bent, loose or broken parts
C	Steering wheel play of five degrees

Question 44 Explanation:

2.1.3 – What to Look For Steering System Defects • Missing nuts, bolts, cotter keys, or other parts. • Bent, loose, or broken parts, such as steering column, steering gear box, or tie rods. • If power steering equipped, check hoses, pumps, and fluid level; and check for leaks. • Steering wheel play of more than 10 degrees (approximately 2 inches movement at the rim of a 20-inch steering wheel) can make it hard to steer.

Question 45

During a seven-step inspection, checking the engine compartment does NOT include checking

A	the battery fluid level
B	the coolant level in the radiator
C	the oil pressure gauge
D	the engine oil level

Question 45 Explanation:

2.1.5 – 7-Step Inspection Method Step 2: Check the Engine Compartment Check that the parking brakes are on and/or wheels chocked. You may have to raise the hood, tilt the cab (secure loose things so they do not fall and break something), or open the engine compartment door. Check the following: • Engine oil level. • Coolant level in radiator; condition of hoses. • Power steering fluid level; condition of hose (if so equipped). • Windshield washer fluid level. • Battery fluid level, connections and tie downs (battery may be located elsewhere). • Automatic transmission fluid level (may require engine to be running). • Check belts for tightness and excessive wear (alternator, water pump, air compressor). Know how much “give” the belts should have when adjusted right, and check each one. • Engine compartment for leaks (fuel, coolant, oil, power steering fluid, hydraulic fluid, battery fluid). • Electrical wiring insulation for cracks and wear. Lower and secure

Question 46

If your vehicle's landing gear is power-operated, you will need to check for

A	Water
B	Oil on the ground
C	Air or hydraulic leaks
D	None of the listed answers

Question 46 Explanation:

11.5.2 – Side of Trailer Landing Gear • Check that the landing gear is fully raised, has no missing parts, the crank handle is secure, and the support frame is not damaged. • If power operated, check for air or hydraulic leaks.

Question 47

A commercial motor vehicle (CMV) is defined as...

A	A vehicle with a gross weight over 26,001 lbs.
B	A vehicle transporting hazardous materials
C	A vehicle transporting 16 or more passengers
D	All of the above

Question 47 Explanation:

Section 1: Introduction (1-1) Who Needs a CDL You Must Have a CDL to Operate: • Any single vehicle with a gross vehicle weight rating (GVWR) of 26,001 pounds or more.

Question 48

Which of the following are potential suspension system defects?

A	All of the above
B	Leaking shock absorbers
C	Broken leaf in a spring
D	Cracked or broken spring hangers

Question 48 Explanation:

2.1.3 – What to Look For Suspension System Defects Cracked or Broken Spring Hangers. • Missing or broken leaves in any leaf spring. If ¼ or more are missing, it will put the vehicle “out of service,” but any defect could be dangerous. Broken leaves in a multi-leaf spring or leaves that have shifted so they might hit a tire or other part. • Leaking shock absorbers. • Torque rod or arm, u-bolts, spring hangers, or other axle positioning parts that are cracked, damaged, or missing. • Air suspension systems that are damaged and/ or leaking. See Figure 2.4. • Any loose, cracked, broken, or missing frame members. Exhaust System Defects A broken exhaust system can let poison fumes into the cab or sleeper berth. Look for: • Loose, broken, or missing exhaust pipes, mufflers, tailpipes, or vertical stacks. • Loose, broken, or missing mounting brackets, clamps, bolts, or nuts. • Exhaust system parts rubbing against fuel system parts, tires, or other moving parts of the vehicle. • Exhaust system parts that are leaking.

Question 49

As you check your signal lights, you should...?

A	Wipe each one clean
B	Tap the bulb of each one
C	Do all of these things
D	Tick each one off on a list

Question 49 Explanation:

Step 6: Check the Signal Lights Get in and Turn off the Lights • Turn off all the lights. • Turn on the stop lights (apply the trailer hand brake or have a helper put on the brake pedal). • Turn on the left turn signal lights. Get out and Check the Lights • Left front turn signal light is clean, operating, and the proper color (amber or white on signals facing the front). • Left rear turn signal light and both stop lights are clean, operating, and the proper color (red, yellow, or amber). Note: Checks of the brake, turn signal, and 4-way flasher functions must be done separately. Get in the Vehicle • Turn off the lights not needed for driving. • Check for all the required papers, trip manifests, permits, etc. • Secure all loose articles in the cab (they might interfere with the operation of the controls or hit you in an accident). • Start the engine.

Question 50

Which of these should you do during a trip as part of your en route inspection?

A	Watch your gauges to check for trouble
B	Do all of the above
C	Pay attention with your senses to possible problems
D	Check critical items when you stop, such as brakes, tires, and lights

Question 50 Explanation:

2.1.2 – Types of Vehicle Inspections Trip Inspection For safety during a trip, you should: • Watch gauges for signs of trouble. • Use your senses to check for problems (look, listen, smell, feel). Check critical items when you stop: • Tires, wheels, and rims. • Brakes. • Lights and reflectors. • Brake and electrical connections to trailer. • Trailer coupling devices. • Cargo securement devices.

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Question 1

If you stop to help others at a crash in which you were not involved, you should park...?

A	As close behind the crash as possible
B	Well away from the crash
C	As close in front of the crash as possible
D	Alongside the crash

Question 1 Explanation:

2.20.1 – Protect the Area The first thing to do at an accident scene is to keep another accident from happening in the same spot. To protect the accident area: • If your vehicle is involved in the accident, try to get it to the side of the road. This will help prevent another accident and allow traffic to move. • If you are stopping to help, park away from the accident. The area immediately around the accident will be needed for emergency vehicles.

Question 2

What is the first thing to do if your vehicle catches fire while driving?

A	Open the door and jump out of the vehicle
B	Open the hood and let the flames die down
C	Find a service station to pull in to
D	Pull off the road and park in an open area

Question 2 Explanation:

2.21 – Fires 2.21.3 – Fire Fighting Knowing how to fight fires is important. Drivers who did not know what to do have made fires worse. Know how the fire extinguisher works. Study the instructions printed on the extinguisher before you need it. Here are some procedures to follow in case of fire. Pull Off the Road. The first step is to get the vehicle off the road and stop. In doing so: • Park in an open area, away from buildings, trees, brush, other vehicles, or anything that might catch fire.

Question 3

An A:B:C type fire extinguisher is designed to work on which types of fires?

A	Gasoline
B	Wood, paper, and cloth
C	All of the above
D	Electrical

Question 3 Explanation:

Question 4

Under-loaded front axles can make the steering axle weight too light to steer safely.

A	FALSE
B	TRUE

Question 4 Explanation:

3.2.4 – Balance the Weight Poor weight balance can make vehicle handling unsafe. Too much weight on the steering axle can cause hard steering. It can damage the steering axle and tires. Under-loaded front axles (caused by shifting weight too far to the rear) can make the steering axle weight too light to steer safely.

Question 5

_________ protect you from your cargo in case of collision and should be inspected for good condition

A	Tie downs
B	Blocking devices
C	Front-end header boards
D	Bracing devices

Question 5 Explanation:

3.3.3 – Header Boards Front-end header boards (“headache racks”) protect you from your cargo in case of an accident or emergency stop. Make sure the front-end structure is in good condition. The front-end structure should block the forward movement of any cargo you carry.

Question 6

Which of the following about covering cargo is NOT true?

A	You need to protect the cargo from the weather
B	You should look at your cargo in the mirrors often while driving
C	Flapping covers need not be tied down as long as the bulk of the cargo is covered
D	You need to protect people from spilled cargo

Question 6 Explanation:

3.3.4 – Covering Cargo There are 2 basic reasons for covering cargo: • To protect people from spilled cargo. • To protect the cargo from weather. Spill protection is a safety requirement in many states. Be familiar with the laws in the states you drive in. You should look at your cargo covers in the mirrors from time to time while driving. A flapping cover can tear loose, uncovering the cargo, and possibly block your view or someone else’s.

Question 7

Outage is

A	a full liquid tanker
B	the weight of the liquid in transit
C	caused by liquid surge
D	the space allotted for expanding liquids

Question 7 Explanation:

8.2.6 – Outage Never load a cargo tank totally full. Liquids expand as they warm and you must leave room for the expanding liquid. This is called “outage.” Since different liquids expand by different amounts, they require different amounts of outage. You must know the outage requirement when hauling liquids in bulk.

Question 8

What do shut-off valves do?

A	None of the listed answers
B	Stop water from being drained out of the air tanks
C	Permit closing the air lines off when another trailer is not being towed
D	Expel oil and water

Question 8 Explanation:

6.2.7 – Shut-Off Valves Shut-off valves are used in the service and supply air lines at the back of trailers used to tow other trailers. These valves permit closing the air lines off when another trailer is not being towed. You must check that all shut-off valves are in the open position except the ones at the back of the last trailer, which must be closed.

Question 9

What is one way of knowing when you have the right engine speed and road speed to shift gears?

A	By shifting whenever you notice heavy smoke coming from the exhaust stack
B	When the engine is lugging
C	Using the sound of the engine to know when to shift
D	There's no way of knowing

Question 9 Explanation:

2.3.1 – Manual Transmissions Knowing When to Shift Up. There are 2 ways of knowing when to shift: • Use Engine Speed (rpm). Study the driver’s manual for your vehicle and learn the operating rpm range. Watch your tachometer, and shift up when your engine reaches the top of the range. (Some newer vehicles use “progressive” shifting: the rpm at which you shift becomes higher as you move up in the gears. Find out what’s right for the vehicle you will operate.) • Use Road Speed (mph). Learn what speeds each gear is good for. Then, by using the speedometer, you will know when to shift up. With either method, you may learn to use engine sounds to know when to shift.

Question 10

What is the best way to use the brake pedal on a steep downhill grade?

A	Use a heavy pressure repeatedly
B	Avoid using the brakes
C	Shift to a lower gear before starting downgrade and use a light, steady pressure on the brake pedal

Question 10 Explanation:

2.3.1 – Manual Transmissions Before Starting Down a Hill. Slow down and shift down to a speed that you can control without using the brakes hard. Otherwise the brakes can overheat and lose their braking power. Downshift before starting down the hill. Make sure you are in a low enough gear, usually lower than the gear required to climb the same hill.

Question 11

When backing, what is the best method to use to avoid blind spots?

A	Use a helper
B	Use mirrors on both sides
C	Back towards the driver's side, where you can see better
D	Look at your path

Question 11 Explanation:

2.2.4 – Backing Safely Use a Helper. Use a helper when you can. There are blind spots you cannot see. That’s why a helper is important. The helper should stand near the back of your vehicle where you can see the helper. Before you begin backing, work out a set of hand signals that you both understand. Agree on a signal for “stop.”

Question 12

The following statements about an engine overheating are TRUE except...

A	Antifreeze is only used in colder temperatures
B	Never leave the engine running if it is overheating
C	If you can touch the radiator cap with your bare hand, it is probably cool enough to open
D	It is not possible to safely drive without radiator fluid

Question 12 Explanation:

2.14 – Driving in Very Hot Weather 2.14.1 – Vehicle Checks Engine Coolant. Before starting out, make sure the engine cooling system has enough water and antifreeze according to the engine manufacturer’s directions. (Antifreeze helps the engine under hot conditions as well as cold conditions.)

Question 13

If your vehicle is equipped with brake retarders, you should not use them...?

A	On high-speed highways
B	On rural roads
C	In parking lots
D	In prohibited areas

Question 13 Explanation:

2.3.4 – Retarders Some vehicles have “retarders.” Retarders help slow a vehicle, reducing the need for using your brakes. They reduce brake wear and give you another way to slow down. There are 4 basic types of retarders (exhaust, engine, hydraulic, and electric). All retarders can be turned on or off by the driver. On some vehicles, the retarding power can be adjusted. When turned “on,” retarders apply their braking power (to the drive wheels only) whenever you let up on the accelerator pedal all the way. Because these devices can be noisy, be sure you know where their use is permitted.

Question 14

If you are convicted in any other jurisdiction of any traffic violation (except parking), you need to notify the motor vehicle licensing agency within how many days?

A	90 days
B	120 days
C	60 days
D	30 days

Question 14 Explanation:

1.4 – Other CDL Rules You must notify your motor vehicle licensing agency within 30 days if you are convicted in any other jurisdiction of any traffic violation (except parking). This is true no matter what type of vehicle you were driving.

Question 15

When faced with an aggressive driver, you should...?

A	Try to get out of their way
B	Try to speed away from them
C	Try to challenge them
D	Try to block them

Question 15 Explanation:

2.10.3 – What you Should do When Confronted by an Aggressive Driver • First and foremost, make every attempt to get out of their way.

Question 16

Which of the following statements is FALSE?

A	Stopping is not always the safest thing to do in an emergency
B	You can almost always turn to miss an obstacle more quickly than you can stop
C	If a tire blows, you should put the brakes on hard to stop the quickly
D	Antilock Braking Systems (ABS) only activate when wheels are about to lock

Question 16 Explanation:

Respond to Tire Failure. When a tire fails, your vehicle is in danger. You must immediately: • Stay off the Brake. It is natural to want to brake in an emergency. However, braking when a tire has failed could cause loss of control. Unless you are about to run into something, stay off the brake until the vehicle has slowed down. Then brake very gently, pull off the road, and stop.

Question 17

What should you do when the spring brakes don't release when you push the trailer air supply control?

A	Pump the brake pedal
B	Accelerate your vehicle
C	Check the air line connections
D	Call 911

Question 17 Explanation:

6.2.4 – Trailer Air Lines If you cross the air lines, supply air will be sent to the service line instead of going to charge the trailer air tanks. Air will not be available to release the trailer spring brakes (parking brakes). If the spring brakes do not release when you push the trailer air supply control, check the air line connections.

Question 18

If you are forced to leave the pavement completely, you should avoid using your brakes until your speed has dropped to around...?

A	15 mph
B	20 mph
C	30 mph
D	10 mph

Question 18 Explanation:

2.17.1 – Steering to Avoid an Accident Leaving the Road. In some emergencies, you may have to drive off the road. It may be less risky than facing an accident with another vehicle. Most shoulders are strong enough to support the weight of a large vehicle and, therefore, offer an available escape route. Here are some guidelines, if you do leave the road. • Avoid Braking. If possible, avoid using the brakes until your speed has dropped to about 20 mph. Then brake very gently to avoid skidding on a loose surface.

Question 19

If your ABS system fails, you should...?

A	Stop immediately
B	Get it serviced soon
C	Ignore it
D	Get it fixed at the next garage

Question 19 Explanation:

2.18.7 – Braking if ABS is Not Working Without ABS you still have normal brake functions. Drive and brake as you always have. Vehicles with ABS have yellow malfunction lamps to tell you if something is not working. As a system check on newer vehicles, the malfunction lamp comes on at start-up for a bulb check and then goes out quickly. On older systems, the lamp could stay on until you are driving over 5 mph. If the lamp stays on after the bulb check, or goes on once you are under way, you may have lost ABS control on 1 or more wheels. Remember, if your ABS malfunctions, you still have regular brakes. Drive normally, but get the system serviced soon.

Question 20

If you suspect a front tire failure, you should...?

A	Stay off the brakes
B	Do all these things
C	Hold the steering wheel firmly
D	Get out and check all the tires

Question 20 Explanation:

2.17.4 – Tire Failure Respond to Tire Failure. When a tire fails, your vehicle is in danger. You must immediately: •Hold the Steering Wheel Firmly. If a front tire fails, it can twist the steering wheel out of your hands. The only way to prevent this is to keep a firm grip on the steering wheel with both hands at all times. • Stay off the Brake. It is natural to want to brake in an emergency. However, braking when a tire has failed could cause loss of control. Unless you are about to run into something, stay off the brake until the vehicle has slowed down. Then brake very gently, pull off the road, and stop. • Check the Tires. After you have come to a stop, get out and check all the tires. Do this even if the vehicle seems to be handling all right. If one of your dual tires goes, the only way you may know is by getting out and looking at it.

Question 21

What is an escape ramp?

A	A ramp commonly found on freeways in California used to get around major accidents
B	A ramp leading to a long bed of loose soft material to slow a runaway vehicle, sometimes in combination with an upgrade
C	None of the above
D	Another term for an off-ramp

Question 21 Explanation:

2.16.4 – Proper Braking Technique Escape ramps have been built on many steep mountain downgrades. Escape ramps are made to stop runaway vehicles safely without injuring drivers and passengers. Escape ramps use a long bed of loose, soft material to slow a runaway vehicle, sometimes in combination with an upgrade.

Question 22

In a seven-day period, you are permitted to drive a maximum of ____ hours.

A	50
B	60
C	65
D	70

Question 22 Explanation:

1.4.1 – State Laws and Rules Hours of Service Multipleday onduty time limitations: You are not eligible to drive after having been on duty for 60 hours in a 7-day period. However, if a motor carrier has commercial motor vehicles operating 7 days a week, the driver is not eligible to drive after having been on duty for 70 hours in an 8-day period. A driver may restart a 7/8 consecutive day period after taking 34 or more consecutive hours off duty.

Question 23

The cumulative effect of not getting enough sleep is known as

A	Sleep debt
B	Insomnia
C	Sleep apnea
D	Micro-sleep

Question 23 Explanation:

2.11.2 – Driver Factors Are you at Risk? Before you drive, consider whether you are: • Sleep-deprived or fatigued (6 hours of sleep or less triples your risk). • Suffering from sleep loss (insomnia), poor quality sleep, or a sleep debt.

Question 24

What are some items that you must check especially before driving in winter weather?

A	CB Radio Antenna
B	Coolant level, windshield washer antifreeze
C	AM-FM Radio

Question 24 Explanation:

2.13 – Driving in Winter 2.13.1 – Vehicle Checks Make sure your vehicle is ready before driving in winter weather. You should make a regular vehicle inspection, paying extra attention to the following items: Coolant Level and Antifreeze Amount. Make sure the cooling system is full and there is enough antifreeze in the system to protect against freezing. This can be checked with a special coolant tester. Defrosting and Heating Equipment. Make sure the defrosters work. They are needed for safe driving. Make sure the heater is working, and that you know how to operate it. If you use other heaters and expect to need them (e.g., mirror heaters, battery box heaters, fuel tank heaters), check their operation. Wipers and Washers. Make sure the windshield wiper blades are in good condition. Make sure the wiper blades press against the window hard enough to wipe the windshield clean, otherwise they may not sweep off snow properly. Make sure the windshield washer works and there is washing fluid in the washer reservoir.

Question 25

It is safe to remove the radiator cap for checks in hot conditions...?

A	If you can touch it with your bare hand
B	As soon as you have stopped
C	Half an hour after stopping
D	If there is no visible steam coming from it

Question 25 Explanation:

2.14 – Driving in Very Hot Weather 2.14.1 – Vehicle Checks Never remove the radiator cap or any part of the pressurized system until the system has cooled. Steam and boiling water can spray under pressure and cause severe burns. If you can touch the radiator cap with your bare hand, it is probably cool enough to open.

Question 26

The proper distance to use high beams is at least _______ away from an approaching vehicle

A	50 feet
B	1000 feet
C	25 feet
D	500 feet

Question 26 Explanation:

2.11.5 – Night Driving Procedures Use High Beams When you Can. Some drivers make the mistake of always using low beams. This seriously cuts down on their ability to see ahead. Use high beams when it is safe and legal to do so. Use them when you are not within 500 feet of an approaching vehicle. Also, do not let the inside of your cab get too bright. This makes it harder to see outside. Keep the interior light off, and adjust your instrument lights as low as you can to still be able to read the gauges.

Question 27

What can you do to lessen the chances of having to make a sudden move to avoid hazards?

A	Watch far enough ahead so that hazards can be anticipated
B	Keep your vehicle centered in your lane by watching the white line up close
C	Follow the driver ahead closely and watch his brake lights

Question 27 Explanation:

2.8 – Seeing Hazards Seeing Hazards Lets you be Prepared. You will have more time to act if you see hazards before they become emergencies. In the example above, you might make a lane change or slow down to prevent an accident if the car suddenly cuts in front of you. Seeing this hazard gives you time to check your mirrors and signal a lane change. Being prepared reduces the danger. A driver who did not see the hazard until the slow car pulled back on the highway in front of them would have to do something very suddenly. Sudden braking or a quick lane change is more likely to lead to an accident.

Question 28

Looking out for hazards and planning what to do should they turn into emergencies is what is called driving...?

A	passively
B	timidly
C	aggressively
D	defensively

Question 28 Explanation:

2.8.4 – Always Have a Plan You should always be looking for hazards. Continue to learn to see hazards on the road. However, do not forget why you are looking for the hazards– they may turn into emergencies. You look for the hazards to have time to plan a way out of any emergency. When you see a hazard, think about the emergencies that could develop and figure out what you would do. Always be prepared to take action based on your plans. In this way, you will be a prepared, defensive driver who will improve your own safety as well as the safety of all road users.

Question 29

At speeds below 40 mph, you should allow a second of space ahead for every...?

A	15 feet of vehicle length
B	5 feet of vehicle length
C	20 feet of vehicle length
D	10 feet of vehicle length

Question 29 Explanation:

2.7.1 – Space Ahead Of all the space around your vehicle, the space you are driving into, that is most important. The Need for Space Ahead. You need space ahead in case you must suddenly stop. According to accident reports, the vehicle that trucks and buses most often run into is the one in front of them. The most frequent cause is following too closely. Remember, if the vehicle ahead of you is smaller than yours, it can probably stop faster than you can. You may crash if you are following too closely. How Much Space? How much space should you keep in front of you? One good rule says you need at least 1 second for each 10 feet of vehicle length at speeds below 40 mph. At greater speeds, you must add 1 second for safety. For example, if you are driving a 40-foot vehicle, you should leave 4 seconds between you and the vehicle ahead. In a 60-foot rig, you will need 6 seconds. Over 40 mph, you would need 5 seconds for a 40-foot vehicle and 7 seconds for a 60-foot vehicle. See Figure 2.12.

Question 30

Since it is difficult to look directly at bright lights when driving, where can you look to avoid the glare of oncoming traffic?

A	Close your eyes momentarily
B	Try to look at the centerline of the highway, watching for the dotted line
C	Try to look at the right side of the road, watching the sidelines

Question 30 Explanation:

2.11.5 – Night Driving Procedures Avoid Glare From Oncoming Vehicles. Do not look directly at lights of oncoming vehicles. Look slightly to the right at a right lane or edge marking, if available. If other drivers do not put their low beams on, do not try to “get back at them” by putting your own high beams on. This increases glare for oncoming drivers and increases the chance of an accident.

Question 31

Your vehicle is stuck on railroad tracks. You should

A	try to save some of the cargo if you don't see a train yet
B	keep trying to move your vehicle until you see the train
C	immediately get out of the cab and move away from the tracks
D	gather up your belongings and paperwork and then leave the cab

Question 31 Explanation:

2.15.6 – Special Situations Be Aware! These trailers can get stuck on raised crossings: • Low slung units (lowboy, car carrier, moving van, possum-belly livestock trailer). • Single-axle tractor pulling a long trailer with its landing gear set to accommodate a tandemaxle tractor. If for any reason you get stuck on the tracks, get out of the vehicle and away from the tracks. Check signposts or signal housing at the crossing for emergency notification information. Call 911 or other emergency number. Give the location of the crossing using all identifiable landmarks, especially the DOT number, if posted.

Question 32

The principal way you should control your speed on downgrades is to...?

A	Weave from side to side
B	Use your normal brakes
C	Use your emergency brakes
D	Use engine braking

Question 32 Explanation:

2.16 – Mountain Driving 2.16.1 – Select a “Safe” Speed You must use the braking effect of the engine as the principal way of controlling your speed. The braking effect of the engine is greatest when it is near the governed rpms and the transmission is in the lower gears. Save your brakes so you will be able to slow or stop as required by road and traffic conditions.

Question 33

When going down a hill you should always...

A	Be in the right gear before starting down the hill
B	Allow the brakes to heat up for better stopping power
C	Use higher gears when you have a heavy load
D	Put heavy pressure on the brakes to allow the drums to cool

Question 33 Explanation:

2.16.2 – Select the Right Gear Before Starting Down the Grade Shift the transmission to a low gear before starting down the grade. Do not try to downshift after your speed has already built up. You will not be able to shift into a lower gear. You may not even be able to get back into any gear and all engine braking effect will be lost. Forcing an automatic transmission into a lower gear at high speed could damage the transmission and also lead to loss of all engine braking effect.

Question 34

Flags or lights are required on projecting loads that extend

A	3 or more feet beyond the rear body
B	6 or more feet beyond the rear body
C	4 or more feet beyond the rear body
D	56 inches or more beyond the rear body

Question 34 Explanation:

3.4.6 – Projecting Loads Lights (or Flags) on Projecting Loads. When the load on any vehicle extends 4 feet (48 inches) or more beyond the rear of the body, a solid red or fluorescent orange flag at least 12 inches square must be placed at the extreme end of the load. If the vehicle is operated during darkness, there must be 2 lit red lights at the end of the load, visible at a distance of 500 feet to the side and rear of the vehicle (CVC §24604).

Question 35

When making a lane change, you should use your mirrors...?

A	Once you have started the change
B	Before you change lanes
C	At all these times
D	After you have signaled

Question 35 Explanation:

2.4.2 – Seeing to the Sides and Rear Lane Changes. You need to check your mirrors to make sure no one is alongside you or about to pass you. Check your mirrors: • Before you change lanes to make sure there is enough room. • After you have signaled, to check that no one has moved into your blind spot. • Right after you start the lane change, to double-check that your path is clear. • After you complete the lane change.

Question 36

Hydroplaning can occur at speeds as low as...?

A	45 mph
B	25 mph
C	35 mph
D	Once you have started the change 30 mph

Question 36 Explanation:

2.6.2 – Matching Speed to the Road Surface Hydroplaning. In some weather, water or slush collects on the road. When this happens, your vehicle can hydroplane. It is like water skiing–the tires lose their contact with the road and have little or no traction. You may not be able to steer or brake. You can regain control by releasing the accelerator and pushing in the clutch. This will slow your vehicle and let the wheels turn freely. If the vehicle is hydroplaning, do not use the brakes to slow down. If the drive wheels start to skid, push in the clutch to let them turn freely. It does not take a lot of water to cause hydroplaning. Hydroplaning can occur at speeds as low as 30 mph if there is a lot of water. Hydroplaning is more likely if tire pressure is low, or the tread is worn. (The grooves in a tire carry away the water; if the grooves are not deep, they do not work well.)

Question 37

What is a good reason for knowing what the traffic is doing on all sides of you?

A	It is always necessary to know when you can make a U-turn
B	Stopping or changing lanes can take time and distance and you need to have room to make these moves safely
C	You need to eliminate all blind spots around you

Question 37 Explanation:

2.4.1 – Seeing Ahead All drivers look ahead; but many do not look far enough ahead. Importance of Looking far Enough Ahead. Because stopping or changing lanes can take a lot of distance, knowing what the traffic is doing on all sides of you is very important. You need to look well ahead to make sure you have room to make these moves safely.

Question 38

What should you do if your vehicle hydroplanes?

A	Release the accelerator
B	Push down on the accelerator, releasing the clutch
C	Let up on the clutch

Question 38 Explanation:

Question 39

What are two main things to look for ahead while driving?

A	Fire and flooding
B	Road signs and detours
C	Traffic and road conditions
D	Truck stops and police
E	Bridges and tunnels

Question 39 Explanation:

2.4.1 – Seeing Ahead Look for Traffic. Look for vehicles coming onto the highway, into your lane, or turning. Watch for brake lights from slowing vehicles. By seeing these things far enough ahead, you can change your speed, or change lanes if necessary to avoid a problem. If a traffic light has been green for a long time it will probably change before you get there. Start slowing down and be ready to stop. Road conditions. Look for hills and curves– anything for which you will have to slow or change lanes. Pay attention to traffic signals and signs. Traffic signs may alert you to road conditions where you may have to change speed.

Question 40

What is the total stopping distance when driving a heavy vehicle on dry pavement at 55 mph?

A	6 seconds
B	4 1/2 seconds
C	7 1/2 seconds
D	5 seconds

Question 40 Explanation:

2.7.1 – Space Ahead How Much Space? How much space should you keep in front of you? One good rule says you need at least 1 second for each 10 feet of vehicle length at speeds below 40 mph. At greater speeds, you must add 1 second for safety. For example, if you are driving a 40-foot vehicle, you should leave 4 seconds between you and the vehicle ahead. In a 60-foot rig, you will need 6 seconds. Over 40 mph, you would need 5 seconds for a 40-foot vehicle and 7 seconds for a 60-foot vehicle. See Figure 2.12. To know how much space you have, wait until the vehicle ahead passes a shadow on the road, a pavement marking, or some other clear landmark. Then count off the seconds like this: “one thousand-and-one, one thousand-and-two” and so on, until you reach the same spot. Compare your count with the rule of 1 second for every 10 feet of length. If you are driving a 40-foot truck and only counted up to 2 seconds, you are too close. Drop back a little and count again until you have 4 seconds of following distance (or 5 seconds, if you are going over 40 mph). After a little practice, you will know how far back you should be. Remember to add 1 second for speeds above 40 mph. Also remember that when the road is slippery, you need more space to stop.

Question 41

Common medicines for colds can make you sleepy

A	FALSE
B	TRUE

Question 41 Explanation:

2.22.2 – Other Drugs Besides alcohol, other legal and illegal drugs are being used more often. Laws prohibit possession or use of many drugs while on duty. They prohibit being under the influence of any “controlled substance,” amphetamines (including “pep pills,” “uppers,” and “bennies”), narcotics, or any other substance, which can make the driver unsafe. This could include a variety of prescription and overthe- counter drugs (cold medicines), which may make the driver drowsy or otherwise affect safe driving ability. However, possession and use of a drug given to a driver by a doctor is permitted if the doctor informs the driver that it will not affect safe driving ability.

Question 42

What is a hazardous materials placard?

A	Signs put on the outside of a vehicle which identify the hazard class of the cargo
B	Signs put on the back of a vehicle which identify the hazard class of the cargo
C	Signs put on the inside of a vehicle which identify the hazard class of the cargo
D	Signs put on the outside of a vehicle which identify the hazard class and weight of the cargo

Question 42 Explanation:

2.23.3 – Lists of Regulated Products Placards are used to warn others of hazardous materials. Placards are signs put on the outside of a vehicle that identify the hazard class of the cargo. A placarded vehicle must have at least 4 identical placards. They are put on the front, rear, and both sides. Placards must be readable from all four directions. They must be at least 10¾ inches square, turned upright on a point, in a diamond shape. Cargo tanks and other bulk packaging display the ID number of their contents on placards or orange panels (CVC §27903).

Question 43

A vehicle must be placed out of service if what fraction of the leaves in any spring assembly on the suspension are broken?

A	1/4
B	1/2
C	1/5
D	1/3

Question 43 Explanation:

2.1.3 – What to Look For Cracked or Broken Spring Hangers. • Missing or broken leaves in any leaf spring. If ¼ or more are missing, it will put the vehicle “out of service,” but any defect could be dangerous. See Figure 2.3.

Question 44

Wheels or rims are unsafe if they have been welded...?

A	On the spokes
B	In any area
C	On the edge of the rim
D	Near the hub

Question 44 Explanation:

2.1.3 – What to Look For Wheel and Rim Problems Wheels or rims that have had welding repairs are not safe.

Question 45

Which of these is part of the seven-step inspection method?

A	Step 1: Vehicle Overview
B	All of the above
C	Step 6: Check the signal lights
D	Step 5: Do a walkaround inspection

Question 45 Explanation:

2.1.5 – 7-Step Inspection Method Vehicle Inspection Guide Step 1: Vehicle Overview Step 5: Do Walk Around Inspection Step 6: Check the Signal Lights

Question 46

During your pre-trip test, when examining hoses with the instructor, you need to look for

A	a low windshield washer fluid level
B	frays in the water pump belt
C	the location of the dipstick
D	puddles on the ground

Question 46 Explanation:

11.2.1 – Engine Compartment (Engine Off) Leaks/Hoses • Look for puddles on the ground.

Question 47

When inspecting your vehicle, which part is NOT necessary to check?

A	Seat shock absorbers
B	Air pressure gauge
C	Temperature gauges
D	Instruments

Question 47 Explanation:

2.1.6 – Inspection During a Trip Check Vehicle Operation Regularly You Should Check: • Instruments. • Air pressure gauge (if you have air brakes). • Temperature gauges.

Question 48

Which of the following is NOT a part of the steering system?

A	Tie rod
B	Hydraulic fluid reservoir
C	Steering knuckle
D	Main spring

Question 48 Explanation:

Question 49

How do you test hydraulic brakes for a leak?

A	With the vehicle under way at a low speed, apply firm pressure, stopping the vehicle as quickly as possible
B	With the vehicle stopped, push down the brake pedal and do not release for at least five seconds
C	With the vehicle stopped, pump the brake pedal three times. Apply firm pressure, and then hold for five seconds

Question 49 Explanation:

2.1.5 – 7-Step Inspection Method Step 7: Start the Engine and Check Test for Hydraulic Leaks If the vehicle has hydraulic brakes, pump the brake pedal three times. Then apply firm pressure to the pedal and hold for 5 seconds.

Question 50

How many red reflective triangles should you carry?

A	5
B	1
C	3
D	7

Question 50 Explanation:

2.1.3 – What to Look For Emergency Equipment Vehicles must be equipped with emergency equipment. Look for: • Fire extinguisher(s). • Spare electrical fuses (unless equipped with circuit breakers). • Warning devices for parked vehicles (for example, 3 red reflective warning triangles, 6 fuses, or 3 liquid burning flares)

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Question 1

What must you do if you are involved in a collision that involves death, injury, or property damage over $1,000?

A	Do all of the above
B	Report it to your employer
C	File an official report on form SR-1 within 10 days
D	Stop driving your vehicle for 10 days

Question 1 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 2

In the event of an engine fire,

A	always open the hood and shoot extinguishers through louvers or from the underside of the vehicle
B	always open the hood to release the fire
C	try to keep the hood closed and shoot extinguishers through louvers or from underside of the vehicle
D	keep the engine running and use extinguisher

Question 2 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 3

Which of these is NOT a common cause of vehicle fires?

A	Flammable cargo
B	Halogen headlights
C	Underinflated tires
D	Problems in the electrical system

Question 3 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 4

What can happen if you don't have enough weight on the steering axle?

A	This can make the vehicle harder to steer
B	This can make the vehicle easier to steer straight
C	This will make the vehicle easier to control in turns

Question 4 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 5

What is the minimum number of tie downs that you should have?

A	Four
B	Two
C	Six

Question 5 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 6

Since you cannot inspect sealed loads, you

A	can exceed gross weight and axle weight limits
B	therefore need special tie down devices
C	should therefore check that you do not exceed gross weight and axle weight limits
D	must be lower than weight limits by 50 pounds

Question 6 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 7

A coupling device capacity is the

A	maximum weight the device can pull and/or carry
B	manufacturer's weight capacity rating of the suspension system
C	weight transmitted to the ground by one axle or one set of axles
D	maximum safe weight a tire can carry at a specified pressure

Question 7 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 8

How often should manual air tanks be drained?

A	Every 36 hours
B	At the end of each day of driving
C	Every hour
D	After a week of driving
E	Once a month is all that is necessary

Question 8 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 9

When descending a hill, you should usually shift down into...?

A	A higher gear that would you need to climb the same hill
B	Any of these depending on road conditions
C	The same gear you would use to climb the same hill
D	A lower gear than you would need to climb the same hill

Question 9 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 10

You are stopped on an incline. How do you keep from rolling back?

A	Shift to neutral
B	Engage the clutch
C	Pump the accelerator hard
D	Put on the parking brake

Question 10 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 11

Before you reverse, you should...?

A	Turn on your emergency flashers
B	Walk around your vehicle
C	Shout a warning to others
D	Sound your horn loudly

Question 11 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 12

If you change gear according to your engine speed, you should monitor your...?

A	Speedometer
B	Oil pressure
C	Tachometer
D	Odometer

Question 12 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 13

In heavy vehicles with manual transmissions which require double clutching, which of the following should you do first when shifting gears?

A	Shift to neutral
B	Push in clutch
C	Do all of these things at the same time
D	Release accelerator

Question 13 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 14

Which of these activities can distract you from your driving?

A	Using a navigation system
B	All of them
C	Adjusting your air conditioning
D	Smoking

Question 14 Explanation:

See Subsections 2.9 and 2.10 of the DMV's CDL Handbook on Distracted Driving, Aggressive Driving, and Road Rage for more info

Question 15

_________ can cause lack of braking power, wheel lockups, pulling to one side or the other, and jackknifing

A	Wet brakes
B	Bleeding tar
C	Loose engine belts
D	Overheated tires

Question 15 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 16

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

A	Put the gears in neutral
B	Pump the brake pedal
C	Look for an escape ramp or an escape route
D	Downshift

Question 16 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 17

ABS systems will be present on all commercial vehicles built after March 1...?

A	1997
B	2003
C	2001
D	1999

Question 17 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 18

Which of these is a sign that you have lost hydraulic brake pressure?

A	The pedal sticks half way
B	The pedal goes to the floor
C	The brakes apply without you touching them
D	The pedal won't move at all

Question 18 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 19

The controlled braking method is used

A	by applying the brakes as hard as you can without locking the wheels
B	when making large steering wheel movements
C	by applying the brakes slowly
D	to make the wheels lock

Question 19 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 20

Which of the following should you NOT do if you experience a tire failure?

A	Be aware that a tire has failed
B	Apply the brakes hard and immediately
C	Stay off the brake pedal
D	Hold the steering wheel firmly

Question 20 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 21

What is the best thing to do if you are tired?

A	Hold the steering wheel firmly Drink plenty of coffee to stay awake
B	Get enough sleep
C	Take pills to keep you alert
D	Plan your trips for the middle of the night to avoid traffic

Question 21 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 22

Concerning night driving, which statement is true?

A	Most hazards are easier to see at night because of the extra lighting
B	If you become sleepy, drink enough coffee to keep you awake until you get to your destination
C	Most heavy vehicle accidents occur between midnight and 6 am
D	Most people are more alert at night

Question 22 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 23

When coming up on another vehicle or approaching one coming in the opposite direction at night, you should dip your lights before they get within...?

A	700 feet
B	200 feet
C	500 feet
D	300 feet

Question 23 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 24

You are driving on a rainy day and the drive wheels begin to spin. To keep control of the vehicle, which of the following is the best action to take?

A	Brake hard
B	Steer to the left or right
C	Take your foot off the accelerator
D	Accelerate slightly

Question 24 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 25

The best lights to use in foggy conditions are...?

A	No lights at all
B	Full beam headlights
C	Low beam headlights
D	Parking lights

Question 25 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 26

If you swing wide to the left before turning right, another driver may try to pass you on the right

A	FALSE
B	TRUE

Question 26 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 27

What are some hazards that are frequently seen on the highway?

A	Work zones, accidents
B	FALSE Workers, children, inattentive drivers, hurrying drivers, impaired drivers, suicides
C	Road edge drop-offs, crashed airplanes, disabled vehicles

Question 27 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 28

Safe drivers maintain space around their vehicles for the following reasons except...

A	In case there is an obstacle in the road
B	In case you need to test your brakes
C	In case you must stop suddenly
D	In case there are cars following too closely

Question 28 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 29

If another vehicle is tailgating you, what should you do to reduce the chances of the crash?

A	Accelerate away from them
B	Increase your following distance
C	Slow down quickly
D	Flash your brake lights

Question 29 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 30

Stopping is not always the safest thing to do in an emergency

A	FALSE
B	TRUE

Question 30 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 31

Which of these has priority at a railroad crossing which has neither gates nor lights?

A	Commercial vehicles
B	Private automobiles
C	Trains
D	School buses

Question 31 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 32

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

A	Total weight of the vehicle and cargo
B	Weather
C	Length and steepness of grade
D	Time of day

Question 32 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 33

When using turn signals, which of the following should be avoided?

A	Signal when you want to change lanes
B	Signal before you exit
C	Signal when you are merging into traffic
D	Signal just before you start to make a turn

Question 33 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 34

In city driving, you should be planning ahead for a distance of about...?

A	Half a block
B	One block
C	Two blocks
D	Three blocks

Question 34 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 35

On a manual vehicle, when you apply the brakes you should push the clutch in...?

A	Once you have come to a complete stop
B	When the engine is close to idle
C	As soon as you begin braking
D	Half way through your braking maneuver

Question 35 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 36

Engine braking is most effective when:

A	RPMs are high and transmission gear is high
B	RPMs are high and transmission gear is low
C	RPMs are low and transmission gear is low
D	RPMs are low and transmission gear is high

Question 36 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 37

A vehicle marked at the rear with a red triangle having an orange center...

A	Is a farm vehicle
B	Is moving slowly
C	May stop at any time
D	Is hauling hazardous materials

Question 37 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 38

How does tire pressure affect hydroplaning?

A	Hydroplaning is more likely to occur when tire pressure is low
B	Hydroplaning is not affected by tire pressure
C	Hydroplaning is more likely to occur when tires are over-inflated

Question 38 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 39

Maintain good visual alertness by...

A	shifting your attention between the mirrors and the road ahead
B	looking ahead as fast as you can see
C	keeping a close eye on the road behind you
D	fixing your eyes on the road in front of you

Question 39 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 40

How many times more distance does it take to stop whenever you double your speed?

A	Three times as much distance
B	Four times as much distance
C	Twice as much distance

Question 40 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 41

Which of the following statements is true about alcohol?

A	Some people are not affected by alcohol
B	A few beers are the same as a few shots of whiskey
C	If you eat a lot first, you will not get drunk
D	Alcohol increases your ability to drive

Question 41 Explanation:

See Subsections 2.22 and 2.23 of the DMV's CDL Handbook on Substances and Driving, and General HAZMAT Rules for more info

Question 42

If you do not have a HAZMAT endorsement on your CDL, under what conditions may you legally haul hazardous materials?

A	When a DOT official approves the load
B	When you will remain within your state
C	If the load does not require placards
D	If your dispatcher feels it is an emergency situation

Question 42 Explanation:

See Subsections 2.22 and 2.23 of the DMV's CDL Handbook on Substances and Driving, and General HAZMAT Rules for more info

Question 43

Checking your vehicle's suspension does NOT include checking

A	the tires
B	the air suspension components
C	the shock absorbers
D	the axle positioning parts

Question 43 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 44

Rear turn signals should be which of these colors?

A	Red
B	Yellow
C	Amber
D	Any of them

Question 44 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 45

How often must drivers of trucks and truck tractors conduct a safety inspection?

A	After driving
B	Before driving
C	Every 5 hours and after driving
D	Before driving, every 3 hours during driving, and after driving

Question 45 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 46

What should wheel-bearing seals be checked for?

A	All of the above
B	Gasoline
C	Color changes
D	Smoke
E	Leaks

Question 46 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 47

The warning light and buzzer will come on when the air pressure in either system drops below what psi?

A	75 psi
B	60 psi
C	70 psi
D	100 psi
E	95 psi

Question 47 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 48

Tires should be replaced...

A	All of the above
B	When the tread separates
C	If the tread depth on your front tires is less than 4/32 deep
D	When there are broken valve stems

Question 48 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 49

How do you test hydraulic brakes for their stopping action?

A	With the vehicle stopped, push the brake pedal firmly, and then hold for five seconds
B	With the vehicle stopped, pump the brake pedal three times. Apply firm pressure, and then hold for five seconds
C	Go about five miles per hour. Push the brake pedal firmly.

Question 49 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 50

Side marker reflectors which are not at the rear of the vehicle must be what color?

A	Blue
B	White
C	Red
D	Amber

Question 50 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

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Question 1

What can you do at an accident scene to prevent another accident?

A	Put on your flashers
B	If you are stopping to help, park away from the accident
C	If your vehicle is involved in the accident, try to get it to the side of the road
D	All of the above
E	Set out reflective triangles to warn other traffic

Question 1 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 2

Two possible causes of tire fires are

A	under-inflated tires and duals that touch
B	improper fueling or loose fuel connections
C	improperly loaded cargo and driving smoking
D	short circuits and duals that touch

Question 2 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 3

What is something that you must do when using a fire extinguisher to fight a fire?

A	Aim at the top of the fire
B	Stay downwind
C	Aim at the base of the fire

Question 3 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 4

Which of these statements is true about the relationship between cargo and height?

A	The weight of a cargo does not change a vehicle's height
B	The weight of the cargo changes a vehicle's height
C	The height of an empty van is the same as that of a loaded one
D	An empty can is lower than a loaded one

Question 4 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 5

Which of the following is a type of cargo that might require special attention from you, the driver, during its transportation?

A	All of the listed answers
B	Hanging meat
C	Oversized loads
D	Livestock
E	Dry bulk tanks

Question 5 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 6

After your pre-trip inspection, you should inspect your cargo

A	within 50 miles of the start of the trip
B	within an hour after starting the trip
C	within 25 miles of the start of the trip
D	within 10 miles of the start of the trip

Question 6 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 7

Which of the following statements about unbaffled or "smooth bore" liquid tankers is NOT true?

A	There is nothing inside the tank to slow down the flow of liquid
B	Food products will most likely be transported in an unbaffled liquid tank
C	Forward and back liquid surge is reduced
D	You must be extremely cautious, especially when starting and stopping

Question 7 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 8

The term "load" means...

A	neither of the above
B	the specified pressure a tire can carry
C	the maximum safe weight a tire can carry at a specified pressure

Question 8 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 9

When should you downshift automatic transmissions?

A	Before going down a hill
B	None of the above
C	Never
D	At the bottom of a hill
E	Half way down a hill

Question 9 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 10

What is hydroplaning?

A	A water spill on the road that came from a water truck
B	A term used for quickly planning an alternate route due to heavy rain
C	The amount of traction a truck has due to the weight of the vehicle on slippery surfaces
D	When tires lose their contact with the road and have little or no traction due to water on the road

Question 10 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 11

When backing a trailer,

A	turn the steering wheel toward the direction you want to go
B	turn and back toward the right side
C	use the highest reverse gear
D	turn the steering wheel in the opposite direction you want to go

Question 11 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 12

When reversing, you should always try to use...?

A	The lowest reverse gear
B	Neutral gear
C	Any of these depending on conditions
D	The highest reverse gear

Question 12 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 13

If your vehicle is equipped with brake retarders, you should switch them off...?

A	In hot conditions
B	On open highways
C	In slippery conditions
D	When driving fast

Question 13 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 14

If you renounce your US citizenship, you will _____.

A	Have to take a more specific hazardous materials test
B	Retake the general knowledge test
C	None of the listed answers
D	Be denied a hazardous materials endorsement

Question 14 Explanation:

See Subsections 2.9 and 2.10 of the DMV's CDL Handbook on Distracted Driving, Aggressive Driving, and Road Rage for more info

Question 15

An antilock braking system (ABS) will

A	shorten your stopping distance
B	let you drive faster
C	increase a vehicle's stopping power
D	not change the way you brake normally

Question 15 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 16

Will "fanning" your brakes, allow them to cool so that they won't overheat on a steep downgrade?

A	Yes, short heavy application of the brakes will prevent the brakes from overheating
B	No, brake drums cool very slowly and the brakes may begin to fade and have less stopping power when the pressure is not applied steadily
C	No, the braking system is not affected by "fanning"

Question 16 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 17

ABS systems only operate when...?

A	The wheels have already locked up
B	You flick a special switch
C	The wheels are about to lock up
D	You press the brake pedal

Question 17 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 18

What do air brakes use to make the brakes work?

A	Water
B	Oil
C	Compressed air
D	Oil and compressed air

Question 18 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 19

A skid happens when tires lose their gip on the road. To prevent skidding, you should

A	accelerate to give power to the drive wheels
B	turn the wheel sharply for all turns
C	adjust to conditions while driving
D	brake hard at all stops

Question 19 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 20

The emergency line has two functions. It controls the emergency brakes on combination vehicles and what else?

A	Supplies air to the trailer air tanks
B	In emergency situations expels water and oil
C	None of the listed answers
D	Helps the vehicle accelerate

Question 20 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 21

If someone is coming towards you at night with very bright lights on, you should look...?

A	Down at the centerline
B	Up at the roof of your vehicle
C	Down into your lap
D	Down at the right side of the road

Question 21 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 22

What is a good rule as to the speed you should go when driving at night?

A	You should never drive so fast as to require your high beams
B	You should keep your speed slow enough to stop within the range of your headlights
C	You do not have to be able to stop within the distance that you can see

Question 22 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 23

You are driving on slippery ice. Your rear-drive wheels lock and you begin to skid. Which of the following is the best action to take?

A	Brake hard and pull off the road
B	Shift to neutral
C	Take your foot off the accelerator and push the brake
D	Take your foot off the accelerator and push in the clutch

Question 23 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 24

In slippery conditions, you should aim to be...?

A	Any of these depending on your skill level
B	Fast and smooth
C	Smooth and slow
D	Fast and aggressive

Question 24 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 25

You should check your tires every _____ or every _____ when driving in very hot weather.

A	1 hour, 50 miles
B	2 hours, 100 miles
C	5 hours, 250 miles
D	3 hours, 200 miles

Question 25 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 26

Which of the following is NOT true when driving through a curve?

A	You should be in a gear that allows you to accelerate during the curve
B	You should slow down before the curve
C	You should brake during the curve
D	The higher your truck's center of gravity is, the easier it is to roll over

Question 26 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 27

To turn quickly and safely in the event of a traffic or vehicle emergency, you should be prepared to counter-steer. This means you turn the wheel

A	to the right of the obstacle
B	away from the obstacle and then back in the other direction
C	to the left of the obstacle
D	the opposite direction of the obstacle

Question 27 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 28

What is a hazard?

A	A hazard is any road condition or other vehicle that is a possible hazard
B	A hazard is more than an emergency
C	A hazard is a material that you haul that requires placards
D	A hazard is a truck with no placards that has hazardous materials

Question 28 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 29

If you triple your speed from 20 to 60 miles an hour, you increase your braking distance by...?

A	Three times
B	Seven times
C	Five times
D	Nine times

Question 29 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 30

Which of these factors can influence whether or not you are able to make the posted clearance on a bridge or underpass?

A	The size of your load
B	All of them
C	Packed snow
D	Resurfacing

Question 30 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 31

How long does it take for a typical tractor trailer unit to clear a single rail road track?

A	8 seconds
B	16 seconds
C	20 seconds
D	12 seconds
E	14 seconds

Question 31 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 32

Bridge laws...

A	can lower the maximum axle weight limit
B	control traffic on a bridge
C	apply only to bridges in California
D	determine the maximum legal axle weight

Question 32 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 33

Which of the following is NOT an appropriate reason to flash your braking lights?

A	To alert drivers behind you that there are hazards ahead
B	To signal to tailgaters that they are too close to your vehicle
C	To warn vehicles approaching you from behind that you are driving slowly
D	To warn drivers behind you when you need to slow down

Question 33 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 34

You should be especially wary of tourists, as they can be confused as to direction. A good clue to a tourist is...?

A	Slow speed
B	Brightly colored cars
C	Rooftop luggage
D	Aggressive driving

Question 34 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 35

Which of the following is NOT a proper way to signal?

A	Flash your signals to draw more attention
B	Signal early
C	Turn your signal off after completing the maneuver
D	Rooftop luggage Signal continuously until you have completed your turn

Question 35 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 36

What causes brakes to fade?

A	Using the brakes too lightly when going downhill
B	Slowing down from high speeds too quickly
C	Coasting
D	Frozen brake pads

Question 36 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 37

When making an emergency stop on the highway...

A	place a red flag from the rear of your vehicle
B	put on your four-way flashers and keep them on until you're back on the road
C	put on your four-way flashers and keep them on until your warning devices are in place
D	blow your horn to alert motorists

Question 37 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 38

What is black ice?

A	Clear ice
B	Freshly paved tar
C	Fog or mist
D	Oil

Question 38 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 39

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

A	About 12-15 seconds
B	About 1/4 mile for open highway driving
C	About one block for city driving
D	About 5 car lengths on the highway

Question 39 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 40

The Commercial Driver's Handbook suggests several things to do when you pass a vehicle. Which of these is NOT one of them?

A	Assume the other driver does not see you
B	Constantly blow your horn while passing the vehicle
C	At night, flash your lights from low to high beam and back while you pass the vehicle

Question 40 Explanation:

See Subsections 2.4, 2.5, and 2.6 of the DMV's CDL Handbook on Seeing, Communicating, and Controlling Speed for more info

Question 41

Which of the following is an effect of drinking and driving?

A	Running stop signs
B	All of the above
C	Making quick, jerky movements
D	Driving in the wrong lane

Question 41 Explanation:

See Subsections 2.22 and 2.23 of the DMV's CDL Handbook on Substances and Driving, and General HAZMAT Rules for more info

Question 42

Which of the following statements about alcohol is true...

A	A few beers are the same as a few shots of whiskey or glasses of wine
B	Fresh air will help you sober up
C	If you eat before you drink you won't get as drunk
D	Drinking coffee will help you stay sober

Question 42 Explanation:

See Subsections 2.22 and 2.23 of the DMV's CDL Handbook on Substances and Driving, and General HAZMAT Rules for more info

Question 43

On a 20 inch steering wheel, there should not be more than how much play?

A	3 inches
B	4 inches
C	1 inch
D	2 inches

Question 43 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 44

Side marker lights must be what color at the rear of the vehicle?

A	Red
B	Amber
C	Blue
D	White

Question 44 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 45

Which of the following should you examine when inspecting the front of your vehicle?

A	Condition of shock absorbers
B	All of the above
C	Condition of brakes
D	Condition of steering system

Question 45 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 46

You check your safety belt to ensure that

A	it has six yards of slack
B	it is original equipment
C	it matches the color of the rest of your cab
D	it is securely mounted

Question 46 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 47

Automatic slack adjusters ___________.

A	None of the listed answers
B	Need to be checked regularly
C	Do not need to be checked
D	Only need to be checked during warm weather

Question 47 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 48

In checking tires, what are some problems that you should look for?

A	Regrooved, recapped, or retreaded tires on the drive wheels
B	Too much or too little specification information on the sidewalls
C	Bad wear, cuts or other damage, tread separation, cut or cracked valve stems. Dual tires that come in contact, mismatched sizes, radial and bias-ply tireds used together

Question 48 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 49

The best time to test your parking brake is...

A	When the vehicle is going down a hill
B	When the vehicle is moving slowly
C	When the vehicle is traveling on the highway
D	When the vehicle is parked

Question 49 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

Question 50

Why should you look under your vehicle at the beginning of your pre-trip inspection?

A	For loose gravel
B	To check part numbers
C	To see if it's been raining
D	For leaks

Question 50 Explanation:

See Subsection 2.1 of the DMV's CDL Handbook on Vehicle Inspection for more info

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Question 1

You see an accident on the road and wish to help. The steps you take to prevent further damage or injury are: protect the area, care for the injured, and

A	always move the severely injured person(s) away from the accident
B	keep the injured person(s) cool
C	notify authorities
D	park your vehicle near the accident

Question 1 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 2

To extinguish an electrical fire,

A	pull into a service station and wait for qualified firefighters
B	use the B:C extinguisher on the base of the fire
C	use the A:B:C extinguisher on the flames of the fire
D	use a lot of water

Question 2 Explanation:

See Subsections 2.20 and 2.21 of the DMV's CDL Handbook on Accident Procedures and Fires for more info

Question 3

Legal maximum weight limits may not be safe in all of the following, EXCEPT

A	a storm
B	traffic
C	winter
D	mountain driving

Question 3 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 4

The aggregate working load limit of your cargo tie-downs must be at least _____ times the weight of the cargo

A	two-and-a-half
B	two
C	one-half
D	four

Question 4 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 5

As a driver for what are you responsible regarding your cargo?

A	Inspecting your cargo and keeping rainwater from getting under the pallets
B	Inspecting your cargo, knowing that your cargo is securely tied down or covered, recognizing overloads and poorly balanced loads
C	Shifting your cargo at state lines and sliding your fifth wheel

Question 5 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 6

When coupling a tractor and a semitrailer, the kingpin and fifth wheel should be

A	none of the listed answers
B	really far apart
C	aligned
D	at opposite angles

Question 6 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 7

Which of the following statements about tank vehicles is true?

A	The term "tank vehicle" refers only to those vehicles having a permanently attached tank
B	Tank vehicles transport liquids only
C	Special skills are required to haul liquid tanks

Question 7 Explanation:

See Section 3 of the DMV's CDL Handbook on Cargo Transport for more info

Question 8

What are two factors in knowing when to shift?

A	Road speed and wind speed
B	Using transmission speed and clutch stroke
C	Using engine speed and road speed
D	Using road speed and "feel" of the road

Question 8 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 9

Which of the following statements about downshifting is NOT true?

A	Downshift when you get to the bottom of a hill
B	Downshift before starting down a hill
C	Downshift before climbing a hill
D	Downshift before entering a curve

Question 9 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 10

Why don't new trucks use the same gear for going down a hill as they would for going up a hill?

A	They have weaker engines
B	They have more air drag
C	They take up more fuel
D	They have low friction parts

Question 10 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 11

You should hold the steering wheel firmly when driving with your hands in which of these clock positions?

A	Eleven and one
B	Eight and four
C	Ten and two
D	Nine and three

Question 11 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 12

Multispeed rear axles and auxiliary transmissions are usually controlled via...?

A	A control on the dashboard
B	A control on the parking brake
C	A control on the steering wheel
D	A control on the gearshift lever

Question 12 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 13

Retarders....

A	reduce wear and tear on the brakes
B	reduce the need to apply the brakes and slow the vehicle
C	apply braking power to the drive wheels
D	do all of the above

Question 13 Explanation:

See Subsections 2.2 and 2.3 of the DMV's CDL Handbook on Controlling your Vehicle for more info

Question 14

Your CDL will be disqualified after three or more convictions of any state law on texting or operating a hand held telephone while operating a CMV.

A	FALSE
B	TRUE

Question 14 Explanation:

See Subsections 2.9 and 2.10 of the DMV's CDL Handbook on Distracted Driving, Aggressive Driving, and Road Rage for more info

Question 15

In emergencies, you may be able to miss an obstacle more quickly than you can stop. What is a characteristic of heavy vehicles when they are turned quickly?

A	Top-heavy vehicles and tractors with multiple trailers will unhook when turned quickly
B	Top-heavy vehicles and tractors with multiple trailers may flip over when turned quickly
C	Top-heavy vehicles and tractors with multiple trailers cannot be turned quickly

Question 15 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 16

The best thing to do if you lose your brake power on a downhill is to...?

A	Try to perform a controlled crash
B	Find an escape ramp or route
C	Try to coast to the bottom of the hill
D	Deliberately skid your vehicle sideways

Question 16 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 17

When going downhill, brakes will start to fade if...?

A	You don't keep them permanently semi-applied
B	They become too hot
C	You don't use them enough
D	You stay in low gear

Question 17 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 18

If a yellow light on the left rear of the trailer stays on when you switch the engine on, this mean...?

A	The spring brakes are working properly
B	The ABS is working properly
C	The spring brakes are not working properly
D	The ABS is not working properly

Question 18 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 19

The vast majority of truck skids are caused by...?

A	Spilled oil
B	Standing water
C	Snow and ice
D	Driver error

Question 19 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 20

If one-fourth of a multileaf spring is missing, which of the following is most likely to happen?

A	It will have no effect
B	It will cause a pop-pop-pop sound
C	It will make it hard to steer
D	It will put the vehicle out of service

Question 20 Explanation:

See Subsections 2.17, 2.18, and 2.19 of the DMV's CDL Handbook on Driving Emergencies, Antilock Braking, and Skid Control/Recovery for more info

Question 21

If you are driving a long distance, you should

A	do some physical exercises after the trip
B	take a short break once or twice during the trip when you are feeling tired or drowsy
C	stop often and take short breaks before you feel really drowsy or tired
D	avoid short breaks, but keep the window open

Question 21 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 22

Which of these is not a problem associated with other drivers during night driving?

A	Temporary blindness from glare
B	Lack of alertness from fatigue
C	Loss of concentration from hunger
D	Impaired vision

Question 22 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 23

When driving down a steep curve in the snow, you should

A	use the engine brake
B	turn as gently as possible
C	use the speed retarder
D	brake hard

Question 23 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 24

What effects can wet brakes cause?

A	Can cause pulling to one side or the other
B	All of the above
C	None of the above
D	Can cause lack of braking power
E	Can cause brakes to apply unevenly

Question 24 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 25

How often should you check your tires when driving in very hot weather?

A	Once each hour
B	Every time you stop
C	Every 2 hours or every 100 miles

Question 25 Explanation:

See Subsections 2.11, 2.12, 2.13, and 2.14 of the DMV's CDL Handbook on Driving in Different Conditions for more info

Question 26

With a large vehicle, if you are turning left, which lane should you use if there are two lanes?

A	Left lane
B	Either lane
C	Right lane

Question 26 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 27

You are more likely to hit a roadside object such as a sign or tree limb if you drive...?

A	To the left of your lane
B	In the center of your lane
C	Near the edge of the pavement
D	In the center of the road

Question 27 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 28

Why make emergency plans when you see a hazard?

A	Because all hazards turn into emergencies
B	So you will have a plan to communicate the risk
C	You will have more time to act if you see hazards before they become emergencies
D	You will have less time to act if you see hazards before they become emergencies
E	None of the above

Question 28 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 29

When you are driving a 60 foot truck at speeds over 40 mph, you should allow following distance of...?

A	Five seconds
B	Seven seconds
C	Six seconds
D	Four seconds

Question 29 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 30

You see a pedestrian about to cross the road looking straight to your vehicle. You should assume...?

A	They will find somewhere else to cross
B	They haven't seen you
C	They won't cross until you pass
D	They have seen you

Question 30 Explanation:

See Subsections 2.7 and 2.8 of the DMV's CDL Handbook on Managing Space and Seeing Hazards for more info

Question 31

Which type of vehicle is more likely to get stuck on a railroad-highway crossing?

A	Meat trucks
B	Double trailers
C	Freight company trucks
D	All of the above
E	Car carriers

Question 31 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 32

When should you downshift for a curve?

A	Slow down to a safe speed and downshift to the proper gear before entering the curve
B	Slow down to a safe speed and downshift to the proper gear upon entering the curve
C	Slow down to a safe speed and downshift after entering the curve

Question 32 Explanation:

See Subsections 2.15 and 2.16 of the DMV's CDL Handbook on Railroad-Highway Crossings and Mountain Driving for more info

Question 33

The best way to warn the drivers behind you that you are slowing down is to...

A	Tap your brakes
B	Flash your bright lights
C	Blow your horn
D	Turn on your emergency flashers

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