District of Columbia
CDL Practice Test

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Simply because the District of Columbia is the only place in the country that has legal taxation without representation doesn't mean there are no laws at all! Every commercial driver in Washington DC must have a valid commercial driver's license. Typically those licenses will be issued in other jurisdictions but Washington DC can and does issue its own. This online exam will help you practice for the District of Columbia CDL Test. 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.  Good luck!

1 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

2 / 40

What is a technical name?

3 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

4 / 40

Which of the following is the proper definition of a cargo tank?

5 / 40

Select the true statement about empty trucks:

6 / 40

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

7 / 40

What should the driver pay special attention to when driving smaller tanks?

8 / 40

You must control how far packages labeled "Radioactive II" or "Radioactive III" are located from people and cargo space walls by referring to:

9 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

10 / 40

The golden rule for school buses when approaching and crossing railroad tracks is:

11 / 40

When a substance in the materials table is written in italics it means :

12 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

13 / 40

You need to be extra careful when driving smooth bore tanks:

14 / 40

Which contains more alcohol: a 12-ounce glass of 5% beer, a 5-ounce glass of 12% wine or a 1 1/2-ounce shot of 80 proof liquor?

15 / 40

When driving normally, some drivers use the hand valve before applying the brake pedal to prevent jack knifing. Select the most appropriate response to this statement.

16 / 40

In Column 1 the symbol "I" means:

17 / 40

Which of the following is a recommended procedure when unloading the students?

18 / 40

The average person requires how many hours of sleep per 24 hour period?

19 / 40

Suspension systems:

20 / 40

Which of the following statements is FALSE?

21 / 40

You should expect____when backing a tractor under a trailer.

22 / 40

When driving with multiple trailers, which one should be right behind the tractor?

23 / 40

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

24 / 40

Select the true statement in regards to quick steering movements and double trailers:

25 / 40

When using turn signals, which of the following should be avoided?

26 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

27 / 40

What should you check for when inspecting a converter dolly?

28 / 40

A shipper’s certification is best described as _____.

29 / 40

To transport cargo safely, which of these are you NOT responsible for?

30 / 40

Select the factor that has no effect on how much liquid you can carry:

31 / 40

Why should you use chocks when parking a trailer without spring brakes?

32 / 40

What should you do before you begin to couple?

33 / 40

Which of the following is a reason to evacuate the school bus?

34 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

35 / 40

What is the safest way to stop unruly behavior on the bus?

36 / 40

What is the best way to stop all skids?

37 / 40

You should___when driving down a long steep hill.

38 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

39 / 40

Five hazard classes that require placarding in any amount are ______.

40 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

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How To Get A District of Columbia Commercial Drivers License

In the District of Columbia, there are classifications of motor vehicles that may only be driven by those with a current commercial drivers license. Additionally, there are four classes of endorsements, including school bus, passenger and tanker. Any vehicle with a gross weight rating over 26,000 pounds is considered commercial in the District of Columbia.

Additional endorsements also include:

  • Hazardous Materials
  • Double/Triple Trailer
  • Tanker
  • Passenger
  • School Bus

Requirements to Obtain a District of Columbia CDL:

  • Have a valid non-commercial driver license
  • Meet identity, residency, and good driving history eligibility qualifications
  • Take the applicable CDL knowledge tests
  • Get a CDL learner permit
  • Pass the CDL road skills test

A Commercial Driver in Washington DC is held to a higher standard than drivers of typical passenger or other non-commerical vehicles.  CDL holders must pass both written tests as well as a practical / skills test.  You may practice for the written test using our online CDL test tool above.  Upon successful completion, of the official Washington DC CDL skills test, you will be a fully licensed driver and ready to take to the open road!

Hit the Open Road

District of Columbia CDL License Test Tips

You think you're ready?  Hold on there, Turbo!  Check out these CDL Test Tips before you go zipping to the DMV for your exam!

  1. You must have your CDL learner permit for at least 30 days prior to scheduling your road skills test.
  2. Make an appointment on the DC Online Road Test Appointment Scheduler.  Make sure to have your driver license number handy...you'll need it.
  3. On your test day, arrive 15 minutes early.  You will need to bring a CDL licensed driver aged 21 or older and this person must hold the CDL class and endorsements you are testing for.

You'll need to bring a few other things with you as well.

  • valid CDL learner permit
  • valid NCDL
  • DOT medical certification card
  • an appropriate vehicle in which to complete your CDL test
  • current registration and insurance for the vehicle

If you fail the CDL test you must wait three calendar days before attempting it again.  If you fail a second time, you cannot re-test for ninety days!

Additional Information

Information on the Washington DC Department of Motor Vehicles

The District of Columbia CDL certifying agency is responsible for testing and certifying all commercial drivers. To get more information contact them via:

Website:  https://dmv.dc.gov/service/obtain-commercial-driver-license
Phone:  202.673.6813
Email:  [email protected]

 

Additional Washington DC CDL Helpful Links

Please use the links below to learn more about helpful topics related to the District of Columbia CDL testing program or other CDL-related topics.