District of Columbia
CDL Practice Test

0

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

Select the reason as to why air tanks need to be drained:

2 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

3 / 40

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

4 / 40

Placarded vehicles must carry which type of fire extinguisher?

5 / 40

The reason a bulk liquid tanker is hard to handle is:

6 / 40

You should____in order to inspect the coupling.

7 / 40

Operating a motor vehicle with the intent of doing harm to others or physically assaulting a driver or their vehicle is known as?

8 / 40

You should place the starter switch key into your pocket while you are performing the pre-trip inspection because:

9 / 40

How often should air tanks be drained?

10 / 40

What might happen if a trailer is too high when you try to couple?

11 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

12 / 40

You should check your mirrors while making a lane change:

13 / 40

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

14 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

15 / 40

Select the true statement about emergency steering and tankers:

16 / 40

The pintle hook should be_____ and the converter dolly air tank drain valve is___when doing a walk around inspection of a triple or double trailer.

17 / 40

How many different hazard classes are there?

18 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

19 / 40

What does the air compressor governor control?

20 / 40

The _____of the kingpin has the locking jaw close around it.

21 / 40

Drivers placard their vehicle to _____ the risk.

22 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

23 / 40

What is a technical name?

24 / 40

Select the true statement in regards to empty trucks:

25 / 40

How do you make sure the trailer height is correct before coupling?

26 / 40

What position should the tractor protection control valve be in after coupling?

27 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

28 / 40

A tractor should not be backed under a trailer until the whole air system is:

29 / 40

How do you check the air flow to the last trailer?

30 / 40

The purpose for the emergency air line is:

31 / 40

When should the trailer hand valve be used?

32 / 40

Which of the following is a key steering component?

33 / 40

An emergency escape ramp should be used _____.

34 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

35 / 40

To find out if a shipment includes a hazardous material, you should:

36 / 40

Select the true statement in regards to an application pressure gauge:

37 / 40

What can side to side surge cause?

38 / 40

To decide which placards you need, if any, what three things do you need to know?

39 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

40 / 40

Select the true statement about baffled tankers:

Your score is

The average score is 0%

5/5 - (1 vote)

District of Columbia Drivers Test

District of Columbia Motorcycle Test

District of Columbia CDL Test

CDL Category Practice Tests

CDL Practice Test

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.