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
Question 1 |
You should not move a severely injured person at a crash scene unless...?
Any of these apply
| |
They are holding up traffic
| |
They are in immediate danger
| |
They request you to
|
Question 2 |
In the event of a cargo fire in a van or box trailer, you should...
drive to the closest service station for assistance
| |
keep the doors shut
| |
park close to the road so other vehicles can see the danger and call for assistance
| |
keep the doors open
|
Question 3 |
The B:C type fire extinguisher is designed to work on burning wood, paper, and cloth
FALSE
| |
TRUE
|
Question 4 |
The Gross Combination Weight Rating is the...
maximum total weight of a single vehicle plus its load specified by the manufacturer
| |
total weight of a powered unit plus trailer(s) plus the cargo
| |
total weight of a single vehicle plus its load
| |
maximum total weight of a power until plus trailer(s) plus the cargo as specified by the manufacturer
|
Question 5 |
A top-heavy load is dangerous because it can cause
a rollover if you swerve around a hazard
| |
damage to the axles or steering
| |
all of the above
| |
a rollover on a curve
|
Question 6 |
What is the minimum distance between tie downs to prevent shifting of cargo?
Every six feet
| |
Every ten feet
| |
Every eighteen feet
|
Question 7 |
If you are transporting livestock,
give livestock enough room to roam freely
| |
rollover is less likely
| |
there is always a high center of gravity
| |
use false bulkheads with less than a full load
|
Question 8 |
Why should you exercise special care when transporting dry bulk tanks?
Dry bulk tanks are the most expensive cargo items to carry
| |
Low center of gravity
| |
High center of gravity and the load can shift
| |
There is no particular reason why you need to exercise special care to transport dry bulk tanks
|
Question 9 |
When accelerating...
Speed up smoothly and gradually and avoid jerking
| |
"Hammer down" when you wheels start to spin
| |
Do not engage the clutch before you take your foot off the brake
| |
Always use the parking brake to slow down
|
Question 10 |
Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?
Anti-lock braking
| |
Engine braking
| |
Double clutching
| |
Brake fade
|
Question 11 |
When backing your vehicle, which of the following is NOT recommended?
Use the lowest reverse gear
| |
Back and turn towards the driver's side
| |
Back towards the right side
| |
Backing as slow as possible
|
Question 12 |
Which of the following is NOT a basic skill needed to operate a commercial vehicle?
Ability to back the vehicle safely
| |
Ability to accelerate
| |
Ability to multitask while driving
| |
Ability to steer
|
Question 13 |
Which of these is NOT a rule to follow for backing safely?
Combine backing and turning toward the driver's side whenever you can
| |
Make use of a helper as often as possible
| |
Accelerate slightly to complete the backing process quickly
| |
Back slowly while using your mirrors
|
Question 14 |
Which of the following provide extra gears on some trucks?
Auxiliary Transmissions
| |
Both of the Above Answers
| |
Multi-Speed Rear Axles
|
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
FALSE
| |
TRUE
|
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
keeping one set of wheels on the pavement
| |
All of the above
| |
coming to a complete stop before returning to the road
| |
using the brake until your speed has dropped to about 20 mph
|
Question 17 |
If an oncoming driver has drifted to your lane, the best thing to do is...?
Stay in the center of the lane
| |
Move to the left
| |
Move to the right
| |
Hold whatever position you are in
|
Question 18 |
On older brake systems, the ABS lamp may stay on until you reach a speed in excess of...?
5 mph
| |
10 mph
| |
20 mph
| |
15 mph
|
Question 19 |
You're driving a rig on which only the trailer, not the tractor, has ABS. What should you do?
Brake normally
| |
Avoid heavy braking
| |
Brake harder than usual
| |
Turn off ABS
|
Question 20 |
Which of these should you NOT do during a drive wheel skid?
Counter steer
| |
Steer into the skid
| |
Turn quickly
| |
Stop braking
|
Question 21 |
If your oil pressure is below the indicated limit, you should...?
Top it up at your next stop
| |
Top it up at the end of the day
| |
Note it on your report
| |
Stop immediately
|
Question 22 |
Which of the following is a good thing to do when driving at night?
Look directly at oncoming headlights briefly
| |
Keep your speed slow enough that you can stop within the range of your headlights
| |
Wear sunglasses to reduce headlight glare
| |
Keep your instrument lights bright
|
Question 23 |
Which of these is the only reliable way to get rid of fatigue?
Stop and sleep
| |
Open your cab windows
| |
Drink caffeinated beverages
| |
Turn up your radio
|
Question 24 |
Should you turn the retarder off when the road is wet, icy, or snow covered?
Yes, whenever your drive wheels have poor traction the retarder may cause a skid
| |
No, because you need more braking power then
| |
No, because the engine retarder will have no effect on traction
|
Question 25 |
At which of these points in a rainstorm will the road be most slippery?
One hour after the rain starts
| |
Just before the rain starts
| |
20 minutes after the rain starts
| |
Just after the rain starts
|
Question 26 |
Which of the following is NOT a main concern when you are driving in very hot weather?
Driving slowly enough to prevent overheating
| |
Tar bubbling up and causing slippery roadways
| |
Your seat belt causing you to sweat
| |
Loose belts possibly causing overheating
|
Question 27 |
If you have to swing out to make a right-hand turn, you should do so by taking up...?
The center of the intersection
| |
Any of these depending on circumstances
| |
The left-hand lane of the road you are leaving
| |
The left-hand lane of the road you are turning into
|
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?
519 feet
| |
219 feet
| |
142 feet
| |
319 feet
|
Question 29 |
According to the Handbook, children present a hazard because
they don't know that trucks are dangerous
| |
they don't know how to drive
| |
they often have grudges against truck drivers
| |
they move quickly without checking traffic
|
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?
12 times
| |
8 times
| |
4 times
| |
16 times
|
Question 31 |
When crossing a railroad track, you should never...?
Do any of these things
| |
Change gear
| |
Slow down
| |
Accelerate
|
Question 32 |
Tests have shown that trucks with a high center of gravity can roll over on curves when traveling...?
10 mph over the speed limit
| |
At the speed limit
| |
20 mph over the speed limit
| |
15 mph over the speed limit
|
Question 33 |
If you are stopped on an incline, how can you start moving without rolling back?
Fully engage the clutch
| |
Aggressively pump the accelerator
| |
Apply the parking brake
| |
Shift to neutral
|
Question 34 |
What is the safest speed when you are driving in heavy traffic?
15 mph below the speed of other traffic
| |
The speed of other traffic (if not illegal or unsafe)
| |
The posted speed limit
| |
As fast as possible, to get out of the way
|
Question 35 |
If your vehicle has curved (also called convex, fisheye, spot, bugeye) mirrors, you must remember that objects will appear...?
Larger and further away than they are
| |
Larger and closer than they are
| |
Smaller and further away than they are
| |
Smaller and closer than they are
|
Question 36 |
When making a turn, you should turn off your signal...?
Once 75% of the turn is completed
| |
As soon as you begin to turn
| |
Once past the apex of the turn
| |
Once your turn is fully completed
|
Question 37 |
What is a problem that you can have when using your mirrors?
There are blind spots that your mirrors cannot show you
| |
They never remain in the positions you have placed them
| |
They are of no help when you are changing lanes
|
Question 38 |
Where should you place your reflectors when stopped on a divided highway or one lane highway?
100 feet, 200 feet, and 300 feet toward approaching traffic
| |
10 feet, 100 feet, and 200 feet toward approaching traffic
| |
20 feet, 50 feet, and 100 feet toward approaching traffic
| |
50 feet, 100 feet, and 150 feet toward approaching traffic
|
Question 39 |
Should you always be looking into the distance ahead?
Yes, you should be prepared for all problems ahead
| |
No, you should shift your attention back and forth, near and far
| |
Yes, by concentrating on the vehicle directly ahead you will be prepared for all emergencies
|
Question 40 |
Which of these equals the total stopping distance?
Perception distance + reaction distance
| |
Reaction distance + braking distance + signal distance
| |
Reaction distance + braking distance
| |
Perception distance + reaction distance + braking 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...
higher standard of care law
| |
none of the above
| |
implied consent law
| |
reasonable cause law
|
Question 42 |
If you do not have a Hazardous Materials Endorsement on your CDL, you can
drive a vehicle that carries hazardous materials if it does not require placards
| |
only transport liquid hazardous materials
| |
transport hazardous materials if your employer lets you
| |
not transport any type of hazardous material
|
Question 43 |
Suspension systems…
Keep the brake drums from failing
| |
Keep the axles in place
| |
Keep the load secure
| |
Keep the steering wheel tight
|
Question 44 |
What are some steering system defects to look for?
Steering wheel play of two degrees
| |
Steering wheel play of five degrees
| |
Missing nuts, bolts, cotter keys or other parts; bent, loose or broken parts
|
Question 45 |
During a seven-step inspection, checking the engine compartment does NOT include checking
the engine oil level
| |
the battery fluid level
| |
the oil pressure gauge
| |
the coolant level in the radiator
|
Question 46 |
If your vehicle's landing gear is power-operated, you will need to check for
Oil on the ground
| |
None of the listed answers
| |
Air or hydraulic leaks
| |
Water
|
Question 47 |
A commercial motor vehicle (CMV) is defined as...
All of the above
| |
A vehicle transporting 16 or more passengers
| |
A vehicle with a gross weight over 26,001 lbs.
| |
A vehicle transporting hazardous materials
|
Question 48 |
Which of the following are potential suspension system defects?
All of the above
| |
Leaking shock absorbers
| |
Broken leaf in a spring
| |
Cracked or broken spring hangers
|
Question 49 |
As you check your signal lights, you should...?
Wipe each one clean
| |
Tick each one off on a list
| |
Do all of these things
| |
Tap the bulb of each one
|
Question 50 |
Which of these should you do during a trip as part of your en route inspection?
Pay attention with your senses to possible problems
| |
Watch your gauges to check for trouble
| |
Do all of the above
| |
Check critical items when you stop, such as brakes, tires, and lights
|
List |
About the General Knowledge CDL Written Test
The General Knowledge test:
- 50 questions.
- You need 40 correct answers (80%).
- Time limit is usually 60-90 min. Varies by state.
- Each state has a number of unique laws, but these tests cover knowledge that is universally required in every state
The General Knowledge CDL written test is the longest of the eight types of written tests—most of them aren’t actually written but completed on a computer—and is required for all CDL licenses.
The questions (like those on all CDL written tests) are multiple-choice, and depending on your state, there could be a variation of how many options from which to choose. Some states give you 3 multiple choice answers to select from. Others give you 4.
The General Knowledge topics cover a wide range to ensure safety on the roads between CDL’s and other motorists:
- Vehicle inspection
- Cargo transport
- Basic control of your vehicle
- Shifting Gears
- Seeing
- Communicating
- Controlling Speed
- Managing space
- Seeing hazards
- Distracted driving
- Aggressive drivers/road rage
- Driving at night
- Driving in fog
- Driving in winter
- Driving in very hot weather
- Railroad-highway crossings
- Mountain driving
- Driving emergencies
- Antilock braking systems
- Skid control and recovery
- Accident procedures
- Fires
- Alcohol, other drugs, and driving
- Hazardous materials rules for all commercial drivers
Questions run the gamut, asking for a clear understanding in the following examples. Why should you back toward the driver’s side? What does “communicating” mean in safe driving? How do you find out how many seconds of following distance space you have? What are some things you can do before and while driving to reduce your stress? What type of vehicles can get stuck on a railroad-highway crossing?