CDL Practice Test


Use this site as a guide to help you prepare for the CDL test in Virginia. Questions on our CDL knowledge exams come from sections of the Virginia DMV CDL manual. You can take these practice test questions as many times as you like, as the site is free to use. You will be presented with 40 questions and you must answer 34 questions correctly to pass. There is a 50-minute time limit. You may not go back once you answer a question. Click the "Start Test" button below to begin. 

1 / 40

Unless you_____you will feel the effects of a liquid surge.

2 / 40

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

3 / 40

To avoid rollover when going through a curve, the best thing to do is:

4 / 40

How much space should there be between the lower and upper fifth wheel?

5 / 40

The brake pushrod should not move more than____for manual slack adjusters.

6 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

7 / 40

A shipper’s certification is best described as _____.

8 / 40

What are some of the important parts in the steering system?

9 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

10 / 40

Rods, connecting links, and arms from the steering box to the wheel are a part of the:

11 / 40

Select the statement that describes how you could damage the landing gear.

12 / 40

This object should be clean with no obstructions, illegal stickers or damage to the glass.

13 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

14 / 40

If the hazardous materials are classified as FORBIDDEN you should:

15 / 40

The floor liner for explosives may not:

16 / 40

Which of the following should you do when driving the school bus in high wind?

17 / 40

Which seats must have a seat belt:

18 / 40

Buses may NOT have recapped or regrooved tires:

19 / 40

What is the next step after securing the bus when you have an unruly child on board?

20 / 40

Select the true statement about emergency brakes:

21 / 40

Select the step that comes first:

22 / 40

A vehicle placarded for Division 1.1, 1.2, or 1.3 explosives:

23 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

24 / 40

Select how you would check the truck's slack adjusters.

25 / 40

You should follow the posted speed limits for curves and be aware of:

26 / 40

Do converter dollies have spring brakes?

27 / 40

Overhead inside mirror is used to:

28 / 40

How should the hand valve be used?

29 / 40

What does the amount of liquid allowed in the tank depend on?

30 / 40

The safety valve is usually set to open at:

31 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

32 / 40

What handling effect should you expect when your tank has baffles?

33 / 40

The locking jaws of the kingpin should close around:

34 / 40

You should_____when the low pressure warning is activated:

35 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

36 / 40

The best way to test the low air pressure warning signal is to:

37 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

38 / 40

What keeps air in the tanks should the air compressor develop a leak?

39 / 40

What is the correct number of red reflective triangles that you should carry?

40 / 40

It is very important that you never smoke around which hazard classes?

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CDL Category Practice Tests

CDL Practice Test

How To Get A virginia Commercial Drivers License

To be eligible for a CDL in Virginia, applicants must meet the following age eligibility requirements.

  • Be at least 18 years old to operate a commercial vehicle intrastate (within Virginia only).
  • Be at least 21 years old to operate a commercial vehicle interstate (outside of Virginia).

Virginia CDL applicants must be certified that they are medically fit to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

  • (Form 649-F) Medical Examiner Report
  • (Form DL-8) Commercial Driver’s License Self-Certification (This form must be completed by a FMCSA-approved medical examiner.

Interstate non-excepted (drivers who do not work for the state or federal governments) must meet federal DOT requirements. Intrastate non-excepted drivers must meet the state requirements.

Drivers who have had their licenses revoked, suspended, denied or canceled are not eligible for a CDL in Virginia. Applicants can be disqualified for having multiple licenses.

Virginia CDL Endorsements

  • H – Hazmat Vehicles
  • N – Tank Vehicles
  • P – Passenger Vehicles
  • S – School Bus
  • T – Double or Triple Trailer
  • X – Combination Tank Vehicles and Hazmat Vehicles

Hit the Open Road

virginia CDL License Test Tips

All Virginia CDL applicants must pass the general knowledge test prior to taking the skills test. To pass the Virginia test, applicants must score 80 percent or higher. Applicants who require endorsements must pass additional tests and pay the required fees. The Virginia skills test can be taken 14 days after applicants pass the knowledge test if applicants have never applied for a CDL before and they pass a state-approved driver education program. It includes a pre-trip vehicle inspection, basic control skills and on-road driving. Applicants must pass each section.

Military veterans and current military members can apply to have the skills exam waived if they meet the requirements. To qualify for a waiver, applicants must:

  • Be an active member of the military.
  • Possess a valid Virginia driver’s license.
  • Have operate a commercial vehicle as part of their military duties.
  • Have been recently discharged from the military.

Additional Information

Information on the Virginia Department of Motor Vehicles

The Virginia Department of Motor Vehicles administers CDL license testing and regulations in Virginia. To get more information contact them via:


Phone: 804.497.7100


Additional Virginia CDL Helpful Links

Please use the links below to access Virginia CDL testing resources and to learn more about practice driving tests for the state of Virginia.