How To Prepare for the DMV CDL Test

Government Tests How To Prepare for the DMV CDL Test

Get Ready for Your DMV CDL Test With DoNotPay’s Help

If you want to drive commercial vehicles in the U.S., you have to pass the Commercial Driver's License (CDL) test. If you are planning to take the DMV CDL test, you should learn what it involves. DoNotPay is here to help you with the preparation by offering a number of CDL practice tests!

What Is the DMV CDL Test?

With CDL, you can drive vehicles that weigh more than 26,000 pounds or lighter vehicles used for the transportation of people. Before you obtain the Commercial Learner’s Permit (CLP), you need to have the CDL permit. Besides this requirement, you should also pass the:

  1. Vision test
  2. Pre-trip inspection
  3. General knowledge and endorsement tests
  4. Driving skills tests

The CDL also involves fees that range from $27 to $73, depending on the state. You need to be a U.S. citizen to be able to take the DMV CDL test. You should also be 18 or older. 

CDL involves class A, B, or C licenses. The CDL test regulations differ from state to state, so make sure to check the criteria specific to your state. To take the test, you should make a DMV appointment.

What Does the CDL Driving Test Consist Of?

The CDL involves the written exam and skills test. The written part consists of the General Knowledge Test and several endorsement tests. You won’t have to take all endorsement tests but only the ones necessary for your type of license—Class A, B, or C. The skills test includes the road test, vehicle inspection, and basic control skills.

Here is what tests and number of questions you can expect on the written part of the CDL:

Test DescriptionThe Number of Questions

General Knowledge

Includes questions related to topics, such as:

  • Shifting gears
  • Seeing hazards
  • Managing space
  • Cargo transport
  • Crash procedures
  • Controlling speed
  • Distracted driving
  • Driving emergencies
  • Skid control and recovery
  • Staying alert and fit to drive


Hazardous materials endorsement

Handling hazardous materials, such as:

  • Explosives
  • Flammable liquids
  • Combustible liquids


Double and triple trailer endorsement

  • Driving safely
  • Coupling and uncoupling the trailers


Tank endorsementTransporting liquid or gaseous materials20
Passenger endorsementDriving vehicles for 16 or more people20
School bus endorsementGetting permission for driving a school bus20
Air brakes testInspecting, using, and maintaining the air brakes25

You need to get 80% of the questions right on each test to pass the exam. 

Why Should You Prepare for the CDL Driving Test?

Even if you think that you already know a lot about driving commercial vehicles, you should prepare for the CDL test thoroughly. Passing the CDL test is far from easy because you need to be familiar with the traffic laws, road signs, and other details specific to your vehicle and cargo. To make sure you do the test successfully, you need to focus on practice first.

How To Pass the CDL Test

If you want to pass the written driving test, you should devote some time to studying the CDL manual valid in your state. The official manuals contain the most reliable information you need to pass the test. You can find the instructions on taking the exam and all topics related to general knowledge and endorsement exams there. 

Studying from the manual won’t be enough—you also need to check your knowledge with practice tests. By doing practice tests, you will see different kinds of question combinations and get a sense of how much time you need to answer them. Simulating the real exam situation will help you feel more comfortable once you take the actual test. 

If you are looking for reliable CDL practice tests, use DoNotPay! 

DoNotPay Has a Bunch of DMV Commercial Practice Tests for You

DoNotPay is an AI-powered app that offers a huge database of CDL practice tests! With our app, you can prepare for the CDL test in any state, including Idaho, Oklahoma, Colorado, California, Virginia, Washington State, and many others.

To access the tests, follow these instructions:

  1. Set up your DoNotPay account in any web browser
  2. Search for the test you want to get ready for
  3. Choose whether you want to get a practice test of 10, 20, or 30 questions
  4. Start practicing

We allow you to do as many CDL practice tests as you want! You can choose to correct your answers the moment you make a mistake or after you finish the test.

What Else Can You Find in DoNotPay’s Test Database?

Aside from CDL tests, DoNotPay has a collection of other government practice tests as well. With our award-winning app, you can prepare for your Notary, Postal, CompTIA A+, U.S. Citizenship, Criteria Cognitive Aptitude Test (CCAT), or Armed Service Vocational Aptitude Battery (ASVAB) tests. We also provide more information about the ASVAB test scores.

Use any web browser to log in to DoNotPay and get ready for your government test!

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