Press "Enter" to skip to content

Tank Vehicle Endorsement Practice Test 1

Last updated on May 5, 2023

This Tank Vehicle Endorsement Practice Test 1 contains knowledge and safe driving information that all commercial drivers should know to successfully pass the CDL “Tanker Endorsement” written test.

Tank Vehicle Endorsement Practice Test Methods:

Number of practice test questions with answers: 20

Number of correctly answered practice test questions needed to pass: 16

Passing score: 80%

This CDL Tank Vehicle Endorsement Practice Test #1 with Answers is applicable for all 50 States.

Tank Vehicle Endorsement Practice Test #2

CDL Tank Vehicle Endorsement Practice Test (#1) With Answers



#1. When hauling a tank trailer, if your drive wheels or trailer wheels begin to skid, your vehicle may ________.

#2. When loading and unloading a tank vehicle with bulkheads, the driver must pay attention to ________.

#3. Sanitation regulations forbid the use of baffles in tanks that transport food products because of the difficulty in cleaning the inside of the tank.

#4. A liquid tank trailer that has no baffles are most often used for:

#5. Hauling liquids in a tank vehicle requires special skills, because:

#6. A tank vehicle is defined as a vehicle that transports:

#7. The amount of liquid to load into a tank depends on:

#8. A prime location for shifting cargo with partial loads is:

#9. Empty tank vehicles may take longer to stop than full ones.

#10. The reason a tank trailer should not be loaded completely full is because:

#11. Never drive a tank vehicle with _______ valves or manhole covers.

#12. All of the following are considered “special purpose” equipment on tank vehicles, EXCEPT:

#13. A tank trailer with baffles helps to control:

#14. Carrying liquids or gases in a leaking tank is a crime.

#15. When inspecting tank vehicles, what is the most important item to check for?

#16. While driving a tank vehicle, if you must stop quickly to avoid a crash, use:

#17. An “outage” is defined as:

#18. A smooth bore tank is another term for:

#19. When the tanks are partially filled, the movement of the liquid is called:

#20. The liquid inside the bulk tank can cause a tank truck to roll sideways:


Tank Vehicle Endorsement Practice Test #2


The pool of questions used to produce this practice test have been independently created by CDL Digest and come directly from Code of Federal Regulations (Title 49 – Transportation) and the information provided in AAMVA’s “2005 CDL Test System (July 2010 or newer Version) Model Commercial Driver Manual”.

These are the same sources that all 50 State Driver Licensing Agencies (SDLA) are required to use by federal regulation (49 C.F.R. 383.133) to develop the pool of questions for all written tests needed for a person to obtain a commercial learner’s permit (CLP), commercial driver’s license (CDL), and/or any federally authorized endorsements.

Note: The above listed source information is static, meaning changes to the information used to create the pool of questions that your State Driver Licensing Agency (SDLA) uses for the actual written test have been extremely rare over the decades. Due to the static nature of the source information, you may see practice test questions and answers in this practice test that are very similar, if not identical to the questions and answers on the actual written test. If this occurs, it is purely coincidental. CDL Digest is not affiliated with the AAMVA or any government agency.


The source material used by CDL Digest to develop these practice test questions is very technical. Relying solely on the practice tests we have produced will not be enough to successfully pass the actual written tests. You will NEED to study in order to successfully pass these practice tests and the actual written tests.

Class “A” Commercial Learner’s Permit Study Guide

Class “B” Commercial Learner’s Permit Study Guide

CDL Tank Vehicle Endorsement Study Guide

Complete CDL Study Guide

You Tube: [Direct Link]

Rumble: [Direct Link]