Practice Test Instructions:
- Choose the best answer and receive instant feedback.
- Click next to go to the next question.
- Check your results at the end.
- Start a new version and keep studying!
Each test contains questions based on information in the official driver's handbook.
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PuedoManejar.com! - Free DMV Practice Tests & So Much More
Want to Pass Your CDL Test the First Time?
Get Your Study Guide!
Find more free DMV practice tests from PuedoManejar.com to help you pass your real exams!
How to Use this Free CDL Practice Test
Each free practice test includes 15 multiple-choice questions based on the CDL manual. You can take the test as many times as you want.
Each time you take the test, you will receive a new set of 15 questions.
The questions are generated randomly, so you can be sure that you are practicing a wide range of topics.
Before you know it, you will be ready to pass your written test and get your Commercial Learner’s Permit!
Get some more practice with the CDL Tanker Exam Simulation.
About the CDL Tanker Knowledge Test
Here’s what you need to know about the tanker endorsement test.
- Number of Questions: 20
- Passing Score: 80%
- Format: Multiple Choice & True/False
Questions on the Tanker Endorsement Test
The CDL Tanker Written Knowledge Test covers information from the Tank Vehicles section (Section 8) of the CDL Handbook.
This sections deals with specifics around operating tank vehicles that transport liquids and gasses, and includes information on:
- Tank vehicle inspections.
- Driving tank vehicles.
- Safe driving rules for tanker commercial vehicles.
- Bulkheads and baffles.
- Liquid surges when transporting liquid cargo.
- Handling curves and stopping distance in a tanker truck.
- Identifying leaks and hazards in a liquid tanker.
The Tank Vehicles knowledge test consists of 20 multiple choice and true/false questions. You’ll need to get at least an 80% to pass the test.
You can prepare for the Tank Vehicles test by studying the appropriate section of the CDL manual and taking our free practice tests.
How hard is the tanker endorsement test?
Driving a tanker truck and transporting liquids or gasses comes with unique sets of challenges.
It’s important for truck drivers to have a solid understanding of what it takes to operate the vehicle safely.
For these reasons, the knowledge exam and skills test for tanker vehicles is challenging.
You’ll need to spend the time studying, preparing, and practicing in order to pass.
Who needs to take the Tanker written test?
Passing the Tank Vehicles Knowledge test is a requirement for any Class A, Class B, or Class C commercial driver’s license (CDL) holder who wants to add the Tanker (N) Endorsement to their license.
The N Endorsement allows you to operate commercial tank vehicles designed to transport liquids and gasses safely.
A tank endorsement allows you to haul a tank with an individually rated capacity of more than 119 gallons or an aggregate rated capacity of 1,000 gallons or more.
Considering the unique effects this type of cargo can have on the handling of a commercial vehicle, it’s important to understand how to operate tank vehicles safely and properly inspect them throughout your trips.
To qualify for the N Endorsement, you’ll also need to pass the:
Is the tanker endorsement the same as hazmat?
No, the tanker (N) endorsement is not the same as a HazMat (H) endorsement.
In order to transport liquid hazardous materials, you’ll need to carry both a tanker and hazmat endorsement.
This is known as an X endorsement. You can prepare for both the tanker and hazmat tests here: Tank & HAZMAT (X) Endorsement Practice Test
How to Get a Tanker Endorsement on your CDL
Adding a tanker endorsement to your CDL is a great way to expand your career path and earn more money.
The basic requirements for a tanker endorsement include:
- Being at least 18 years old.
- Have a valid CDL.
- Complete any necessary training programs.
- Pass the tanker endorsement test.
- Pass the necessary skills test if you do not already hold the proper CDL class.
- Pay the testing and endorsement fees.