Tanker CDL Practice Test

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Tanker Endorsement Test

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Question 1

You are driving a tanker truck. The front wheels begin to skid. Which of these is most likely to occur?

A
The truck will roll over.
B
You will continue in a straight line and keep moving forward no matter how you steer
C
Liquid surge will pull the tank from the truck.
Question 1 Explanation: 
Due to tank surge, you will be pushed straight forward until the tires finally regain traction and then the steer tires will propel the cab in the direction they are pointed
Question 2

How would you expect a truck with a cargo tank that has baffles to handle on the road?

A
The truck will handle the same way as a tanker without baffles
B
The truck will seem heavier than it really is
C
There will be less front-to-back surge than there is in a tanker without baffles
Question 2 Explanation: 
The surge will be noticeably reduced due to the baffles (walls) that slow the movement of the product inside the tank.
Question 3

A tank endorsement is required for certain vehicles that transport

A
hazardous materials
B
liquids or gases
C
passengers
Question 3 Explanation: 
Liquids and gases require a tank endorsement
Question 4

Side-to-side surge can cause

A
a rollover
B
overspeeding
C
suspension system failure
Question 4 Explanation: 
Sid to side surge can be deadly! Be careful when turning the vehicle not to cause side to side surge
Question 5

Empty Trucks:

A
May require a longer stopping distance then full trucks
B
Stop quicker only when you use the emergency or parking brake
C
Have better traction when stopping than full trucks
Question 5 Explanation: 
Empty trucks require a longer stopping distance, and will slide easier
Question 6

When your cargo tank has baffles, what handling effect do you expect?

A
There will be less front-to-back surge than in a tank without baffles
B
The surge will be slower than in a tank without baffles
C
There will be less side-to-side surge than in a tank without baffles
Question 7

The liquid in a tank with baffles can still have what kind of surge?

A
Top-to-bottom
B
Side-to-side
C
Front-to-back
Question 7 Explanation: 
Even with baffles, side to side surge is still possible
Question 8

Liquid-tight separators between compartments inside tanks are called

A
baffles
B
bulkheads
C
barriers
Question 8 Explanation: 
Bulkheads separate compartments and keep the product from mixing
Question 9

The amount of liquid to load into a tank depends on what?

A
The legal weight limits
B
The amount the liquid will expand in transit
C
Both of the above
Question 9 Explanation: 
Both the wight limits and the expansion figure into the maximum amount of product that can be loaded.
Question 10

An emergency forces you to stop your tanker quickly or crash. You should

A
use only the emergency brakes
B
lock the brakes with the pedal and hold it there
C
use controlled or stab braking
Question 10 Explanation: 
Always use controlled braking to stop a vehicle hauling a tank
Question 11

Separators with openings or holes in them, that are between compartments in a
tank are called

A
baffles
B
barriers
C
bulkheads
Question 11 Explanation: 
Baffles allow the product to go from one compartment to the other, while bulkheads do not
Question 12

When should the driver of a tanker that has lost its brakes use a truck escape
ramp?

A
Never
B
Only if the tank has baffles
C
Always
Question 12 Explanation: 
Truck escape ramps are designed to allow for the spillage of tanked product. If you lose your brakes in a tanker, use them!
Question 13

When you load the small tanks of a cargo tank equipped with bulkheads, you
should check the

A
water content
B
distribution of weight
C
air-to-fuel ratio
Question 13 Explanation: 
When driving a truck with a tank, weight distribution is very important. Distribute the load as evenly as possible to maintain stability
Question 14

You are driving on a clear night. You must dim your headlights from high to
low. You should adjust your speed so you can stop within

A
the distance you will travel in the next 15 seconds
B
the distance you can see ahead
C
the length of your vehicle
Question 14 Explanation: 
The distance you can see in your headlights dictates the speed in which you should drive. Never outdrive your ability to see!
Question 15

You should be very cautious when driving smooth bore tankers, especially when
you are

A
starting or stopping
B
going uphill or downhill
C
driving against the wind
Question 15 Explanation: 
Smoothbore tankers are extremely prone to surge related loss of control. Most of these accidents happen when the driver starts or stops...
Question 16

Hauling liquids in tankers requires special care for the following reason(s)

A
Both of the above
B
Liquid movement
C
High center of gravity
Question 16 Explanation: 
Both the high center of gravity and the movement of the product (liquid) are very influential in how a driver reacts to any situation when driving.
Question 17

A baffled tanker is one with

A
hollow balls floating in the liquid to slow movement
B
bulkheads in them with holes that let the liquid flow through.
C
separate tanks inside the trailer
Question 18

Which of these statements about tankers and their center of gravity is true?

A
Both of the above
B
Much of the load's weight is carried high up off the road
C
Tankers can turn over at the speed limits posted for curves
Question 19

The best way to take a curve in a tanker is to slow to a safe speed before
entering the curve and then ____ as you go through it.

A
speed up slightly
B
downshift twice
C
brake lightly
Question 19 Explanation: 
slight acceleration in the curve will stabilize the product in the tank just long enough to get the truck through the curve. Stability is the key!
Question 20

Which of these statements about stopping distance and speed is true?

A
Both of the above are true
B
Wet roads can double the stopping distance at any speed
C
You need about twice as much stopping distance at 40 mph as at 20 mph
Question 20 Explanation: 
Wet roads can double the stopping distance at any speed. Drive with care!
Question 21

A smooth bore tank is also known as

A
a liquid tank with baffles
B
a tank made of aluminum
C
an un-baffled liquid tanker
Question 22

You should know the outage needed for the liquids you carry because

A
tank baffles are not always legal with outage
B
some of the heaviest liquids do not need any outage
C
some liquids expand more than others when they get warm
Question 23

The movement of the liquid in partially filled tanks is called

A
waves
B
splashing
C
surging
Question 24

How does liquid surge affect the handling of a tanker?

A
Surge lets you turn corners tighter
B
Surge increases the wind drag of the truck
C
Surge can move the truck in the direction the liquid waves move
Question 25

Separators with openings or holes in them, that are between compartments in a
tank are called

A
barriers
B
baffles
C
bulkheads
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About the Tanker CDL Test

The Tanker test:

  • 20 questions.
  • You need 16 correct answers (80%).
  • You may be timed. Time limit varies by state. 

Tankers carry liquid materials. While some believe tankers are only for carrying hazardous materials, this isn’t true. There are some jobs that require a tanker endorsement but not a HAZMAT endorsement.

We still recommend that if you get your tanker endorsement, you should also get your HAZMAT as well. Many liquid transports are hazardous, and the tanker/HAZMAT combination will open up more jobs for you to haul. 

A tanker endorsement is necessary for transporting liquids in a tank having an individual-rated capacity of more than 119 gallons and an aggregate-rated capacity of 1,000 gallons or more.

You will be tested on:

  • Inspecting tank vehicles
  • Special purpose equipment
  • Driving tank vehicles
  • High center of gravity
  • Danger of surge
  • Bulkheads/baffled tanks
  • How much to load
  • Safe driving rules
  • Controlling surge/curves
  • Stopping distance/skids

Tankers are great endorsements to have—they add a lot of weight to your resume! Be ready to answer all questions with confidence. How are bulkheads different than baffles? Should a tank vehicle take curves, on ramps/off ramps at the posted speed limit? What three things determine how much liquid you can load?

 

About The Author
Contributor: Luke Nold (Experienced truck driver for 5+ years and published writer for Fleet Magazine).