#1 Rated FREE 2025 Tanker Endorsement Practice Test For All 50 States

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CDL Tanker Endorsement Practice Test
Revised and updated for 2025

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To help you prepare for the Tanker Endorsement knowledge test, we have created this practice test consisting of 20 questions. Each question is worth five points for a total of 100 possible points. A passing score is 80%. We have created both a Tanker Endorsement Practice Quiz and a Tanker Endorsement Practice Test.

The Tanker Endorsement Practice Quiz reveals the correct answer during each question to help you study for the actual Tanker Endorsement knowledge test. The Tank Vehicles Practice Test doesn’t reveal the correct answers until the test is over. The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window. It’s that easy.

Press the start button to begin your free Tanker Endorsement Practice Quiz. Good luck!

Tank Vehicles CDL Practice Quiz

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Congratulations! You have completed the Tank Vehicles CDL Practice Quiz. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

Baffles in a tanker help to eliminate ______.

A	uneven weight distribution
B	rollovers
C	side to side liquid surge
D	forward and backward liquid surge

Question 2

The best way to prevent rolling over when driving a tanker through a curve is to:

A	with both hands firmly grasping the steering wheel, fan your brakes as you enter the curve.
B	let off the gas as you approach the curve and then brake gently as you go through the curve.
C	drive into the curve at a slow speed then downshift as you drive through the curve.
D	slow down as you approach the curve then gently accelerate as you drive through the curve.

Question 3

A liquid tank without ______ is also known as a ______ tank.

A	cladding, cylindrical
B	baffles, cylindrical
C	bulkheads, double conical
D	baffles, smooth bore

Question 4

The ______ in a tanker protects the tanker from ______.

A	cladding, corrosive cargo
B	coating, extreme temperatures
C	coating, leaks
D	cladding, liquid surges

Question 5

The posted speed for a ______ may be too fast for a tank vehicle.

A	curve
B	All of these are correct.
C	on ramp
D	off ramp

Question 6

On all tank vehicles, the most important item to check for is ______.

A	dents
B	cracks
C	leaks
D	corrosion

Question 7

Which tankers have the highest risk of a rollover?

A	Cylindrical tankers.
B	Tankers transporting pressurized gas.
C	None of these are correct.
D	Empty tankers.

Question 8

When transporting hazardous materials, tankers must be marked with ______.

A	the manufacture date
B	the PUCO or ICC number of the owner
C	the CHEMTREC phone number
D	the UN or NA ID number of the product

Question 9

You should be extra cautious while operating a ______ tanker, especially when ______ because of ______.

A	baffled, braking, liquid surge
B	smooth bore, descending a hill, uneven weight distribution
C	smooth bore, starting and stopping, liquid surge
D	baffled, ascending a hill, uneven weight distribution

Question 10

In certain liquid tankers, the smaller tank divisions are known as ______.

A	baffle tanks
B	bulkheads
C	baffle dividers
D	liquid dividers

Question 11

A liquid tanker that has no ______ is most often used for transporting ______.

A	baffles, compressed gas
B	cladding, liquid gas
C	baffles, milk or food products
D	cladding, milk or food products

Question 12

Some liquid tankers contain bulkheads. When loading or unloading the bulkheads, the driver must pay attention to the ______.

A	valve positions
B	weight distribution
C	load limit
D	liquid temperature

Question 13

The amount of liquid that can be loaded into a tank depends on:

A	All of these are correct.
B	the legal weight limits.
C	the weight of the liquid.
D	the amount that the liquid will expand during transit.

Question 14

Inside tankers, what are the dividers that have openings at the top and bottom called?

A	Baffles.
B	Billows.
C	Bulkheads.
D	Barriers.

Question 15

In a tanker, the process of liquid expanding as it becomes warm is known as ______.

A	liquid surge
B	outage
C	seepage
D	expansion

Question 16

The most stable tanker shape is ______.

A	cylindrical
B	spherical
C	elliptical
D	double conical

Question 17

Stop valves in a cargo tank ______ during ______.

A	open, an emergency
B	close, loading
C	close, an emergency
D	close, unloading

Question 18

If you are driving a ______ tanker that is partially full, it is best to ______ because any ______ could cause a rollover.

A	baffled, fan the brakes, forward and backward liquid surge
B	double conical, drive slow, side to side liquid surge
C	baffled, drive slow, side to side liquid surge
D	cylindrical, drive the posted speed limit, large bump

Question 19

Extra special care is required when transporting ______ in tankers. This is because of the ______ center of gravity that tankers have.

A	compressed gases, flat
B	liquid, high
C	compressed gases, wide
D	liquid, low

Question 20

You should always ______ before loading, unloading, or operating a tanker.

A	read over the driving safety rules
B	All of these are correct.
C	clean the loading/unloading area
D	inspect the vehicle carefully

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 20 questions to complete.

←

List

→

Return

Shaded items are complete.

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
End

Return

The Tanker Endorsement Practice Test doesn’t reveal the correct answers until the test is over. The questions and answers are given in random order each time you retake the test. When you are finished testing, simply click on the “Get Results” button to see your test results. Clicking on the blue “List” button will reveal a list of all the questions you answered correctly and incorrectly. To take the test again, just refresh your browser window.

Press the start button to begin your free Tanker Endorsement Practice Test. Good luck!

Tank Vehicles CDL Practice Test

Please wait while the activity loads.
If this activity does not load, try refreshing your browser. Also, this page requires javascript. Please visit using a browser with javascript enabled.

If loading fails, click here to try again

Start

Congratulations! You have completed the Tank Vehicles CDL Practice Test. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%

Your answers are highlighted below.

Question 1

Which tankers have the highest risk of a rollover?

A	Empty tankers.
B	Cylindrical tankers.
C	Tankers transporting pressurized gas.
D	None of these are correct.

Question 2

In certain liquid tankers, the smaller tank divisions are known as ______.

A	baffle dividers
B	baffle tanks
C	liquid dividers
D	bulkheads

Question 3

Some liquid tankers contain bulkheads. When loading or unloading the bulkheads, the driver must pay attention to the ______.

A	liquid temperature
B	weight distribution
C	valve positions
D	load limit

Question 4

You should be extra cautious while operating a ______ tanker, especially when ______ because of ______.

A	baffled, ascending a hill, uneven weight distribution
B	smooth bore, descending a hill, uneven weight distribution
C	baffled, braking, liquid surge
D	smooth bore, starting and stopping, liquid surge

Question 5

The best way to prevent rolling over when driving a tanker through a curve is to:

A	let off the gas as you approach the curve and then brake gently as you go through the curve.
B	slow down as you approach the curve then gently accelerate as you drive through the curve.
C	drive into the curve at a slow speed then downshift as you drive through the curve.
D	with both hands firmly grasping the steering wheel, fan your brakes as you enter the curve.

Question 6

Baffles in a tanker help to eliminate ______.

A	side to side liquid surge
B	forward and backward liquid surge
C	rollovers
D	uneven weight distribution

Question 7

When transporting hazardous materials, tankers must be marked with ______.

A	the PUCO or ICC number of the owner
B	the CHEMTREC phone number
C	the manufacture date
D	the UN or NA ID number of the product

Question 8

A liquid tanker that has no ______ is most often used for transporting ______.

A	baffles, compressed gas
B	cladding, liquid gas
C	baffles, milk or food products
D	cladding, milk or food products

Question 9

The most stable tanker shape is ______.

A	elliptical
B	spherical
C	double conical
D	cylindrical

Question 10

The posted speed for a ______ may be too fast for a tank vehicle.

A	off ramp
B	curve
C	All of these are correct.
D	on ramp

Question 11

Stop valves in a cargo tank ______ during ______.

A	close, an emergency
B	close, loading
C	close, unloading
D	open, an emergency

Question 12

In a tanker, the process of liquid expanding as it becomes warm is known as ______.

A	outage
B	expansion
C	liquid surge
D	seepage

Question 13

Inside tankers, what are the dividers that have openings at the top and bottom called?

A	Barriers.
B	Billows.
C	Baffles.
D	Bulkheads.

Question 14

The amount of liquid that can be loaded into a tank depends on:

A	the legal weight limits.
B	All of these are correct.
C	the weight of the liquid.
D	the amount that the liquid will expand during transit.

Question 15

The ______ in a tanker protects the tanker from ______.

A	coating, extreme temperatures
B	cladding, corrosive cargo
C	cladding, liquid surges
D	coating, leaks

Question 16

On all tank vehicles, the most important item to check for is ______.

A	cracks
B	dents
C	leaks
D	corrosion

Question 17

Extra special care is required when transporting ______ in tankers. This is because of the ______ center of gravity that tankers have.

A	liquid, high
B	compressed gases, flat
C	compressed gases, wide
D	liquid, low

Question 18

If you are driving a ______ tanker that is partially full, it is best to ______ because any ______ could cause a rollover.

A	baffled, fan the brakes, forward and backward liquid surge
B	double conical, drive slow, side to side liquid surge
C	baffled, drive slow, side to side liquid surge
D	cylindrical, drive the posted speed limit, large bump

Question 19

You should always ______ before loading, unloading, or operating a tanker.

A	All of these are correct.
B	clean the loading/unloading area
C	read over the driving safety rules
D	inspect the vehicle carefully

Question 20

A liquid tank without ______ is also known as a ______ tank.

A	cladding, cylindrical
B	bulkheads, double conical
C	baffles, cylindrical
D	baffles, smooth bore

Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results

There are 20 questions to complete.

←

List

→

Return

Shaded items are complete.

1	2	3	4	5
6	7	8	9	10
11	12	13	14	15
16	17	18	19	20
End

Return

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100% Money Back Guarantee!
CDL Tanker Endorsement Practice Test
Revised and updated for 2025

Requirements for getting your license
What to bring to the DMV
DMV Fees
Real Questions & Answers from the test
Online practice tests and simulated real tests
Traffic signs & signals you MUST know!
Website for your state’s DMV if you have questions
Immediate access
View on your computer, tablet and mobile phone!
100% REFUND if you don’t pass your written tests

Click Here To Buy The Tanker Endorsement Practice Test With 100% Money Back Guarantee!