CDL Practice Test


Welcome to the Maryland CDL practice test site. Questions on these practice tests are similar to those that are found on the Maryland CDL test and presented by the MVA. Use these practice test questions as you prepare to obtain a Maryland CDL. These tests are free and you may take them as many times as you would like. 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

Signs of distracted drivers include:

2 / 40

A drawbridge does not have a traffic light showing green or a traffic control attendant. How many feet before the draw of a bridge must a bus driver stop?

3 / 40

The floor liner for explosives may not:

4 / 40

When transporting hazardous loads, you must check the tires at least:

5 / 40

Some city transit buses may have a brake-door interlock system, this system:

6 / 40

What is the purpose of a driver placarding his or her vehicle?

7 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

8 / 40

Select the statement that tells you how you can check the low pressure warning signal.

9 / 40

Which seats not securely fastened to the bus are usually allowed?

10 / 40

Which of the following statements about special danger of loading and unloading is true?

11 / 40

Select the true statement in regards to large combination vehicles taking longer to stop.

12 / 40

Select the true statement about double or triple trailers.

13 / 40

Select the true statement about handling triples and doubles:

14 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

15 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

16 / 40

The emergency air line is used to:

17 / 40

Cargo tanks are:

18 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

19 / 40

In Column 1 the symbol "I" means:

20 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

21 / 40

The trailer height is correct for connecting a converter dolly to a second trailer when:

22 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

23 / 40

What are the 3 methods for securing a second trailer before coupling?

24 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

25 / 40

Which of the following is a necessary qualification for non-bulk packaging?

26 / 40

When should you check your mirrors for a lane change?

27 / 40

Before backing under the trailer you should______when coupling a tractor and trailer with air lines already connected.

28 / 40

Select the item that is not checked in the engine compartment:

29 / 40

This object is not checked at the rear of the trailer.

30 / 40

An "A/W" the first column of the hazardous materials table means:

31 / 40

How should the pintle hook be when backing a dolly under the second trailer?

32 / 40

The container for the mechanism that transforms the steering column action into wheel action is:

33 / 40

What should you hook up before backing a tractor to a trailer for coupling?

34 / 40

Where should the safety catch for the fifth wheel locking lever be located for coupling to be complete?

35 / 40

How can you determine if your vehicle is equipped with ABS?

36 / 40

What is the purpose of a baffle?

37 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

38 / 40

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

39 / 40

Select the best description of a baffle tank:

40 / 40

If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?

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CDL Category Practice Tests

CDL Practice Test

How To Get A maryland Commercial Drivers License

Applicants can apply for any CDL and necessary endorsements when they are 21 years of age or older. Applicants may apply for a restricted CDL at the age of 18 years old. This restricted CDL limits the driver to intrastate driving and doesn’t allow HazMat Certification, driving double or triple trailers, or driving school buses with children on board. All applicants must possess a current DOT medical card to be considered for their CDL.

All drivers that have the following issues are considered disqualified from receiving their Maryland CDL.

  • Having a current license suspended, revoked, denied, or canceled.
  • Possessing more than one state driver’s license.
  • Having restricted CDL driving privileges in another state.
  • Being convicted of driving impaired within 24 months prior to submitting a CDL application.

All applicants must successfully pass both a skills test and a knowledge test in order to receive their Maryland CDL. To receive specific endorsements, individuals must pass examinations about the endorsement as well.

X – Tank and Hazmat Endorsement
H – Hazardous Materials
N – Tank Vehicles
P – Passenger Vehicles
T – Double / Triple Trailers

Hit the Open Road

maryland CDL License Test Tips

Knowledge tests are required to receive Class A, B, and C CDLs and endorsements. All applicants must take a 50 question test and pass with a score of 40 or higher to receive their CDL permit. Those applying for a Class A license must take a 70 question test, with 20 of the questions pertaining directly to combination vehicles. All endorsements require their own specific examination that has been 20 and 30 questions. All assessments must be passed with a score of 80 or higher.

Each applicant is required to complete a three-section skills assessment. This assessment is comprised of a vehicle inspection, driving test, and basic control test. To pass the skills portion of the CDL assessment, applicants must successfully show their knowledge in all three areas. Those seeking vehicle-specific endorsements must take the skills test in that specific type of vehicle they want the endorsement for.

Additional Information

Information on the Maryland Motor Vehicle Administration

The Maryland Motor Vehicle Administration provides the oversight and administration of CDL requirements in Maryland. To get more information contact them via:


Phone:  410.424.3011


Additional Maryland CDL Helpful Links

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