CDL Practice Test


Welcome to our CDL practice test site as you attempt to obtain your CDL in Washington. Our practice questions are designed to be similar to questions you would encounter on the CDL Knowledge Test. You can take these practice test questions as many times as you like, and the site is free to use as you prepare to take the CDL test in Washington. 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

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

2 / 40

Select the true statement about seeing ahead.

3 / 40

Select the true statement in regards to a converter dolly:

4 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

5 / 40

For what reason do you keep the starter switch key in your pocket during the pre-trip inspection?

6 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

7 / 40

The method used to make sure the spring brakes will come on automatically is to:

8 / 40

What is the stopping distance for a tractor trailer that is traveling at 55 mph on dry pavement?

9 / 40

Select the true statement in regards to the center of gravity for tanks:

10 / 40

Which of the following is not a prohibited practice on the bus:

11 / 40

Upon what does the amount of liquid you can carry in a load depend?

12 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

13 / 40

What is the best way to stop all skids?

14 / 40

When driving tank vehicles you should:

15 / 40

What is most likely to occur when the front wheels begin to skid?

16 / 40

Should your air compressor stop working:

17 / 40

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

18 / 40

Which of the following would NOT be part of a standard vehicle inspection?

19 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

20 / 40

What are some things you should check on the front of your vehicle when doing the walk-around inspection?

21 / 40

Which trailer is most likely to turn over when you make a sudden turn while pulling doubles?

22 / 40

The designation RQ identifies the material's:

23 / 40

Select the false statement about tractor protection valves.

24 / 40

What is the first thing to do if your vehicle catches fire while driving?

25 / 40

Select the true statement about empty trucks:

26 / 40

Select which vehicles are required to have a low air pressure warning signal:

27 / 40

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

28 / 40

When would you lock some emergency roof hatches in a partly open position?

29 / 40

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

30 / 40

Select the true statement in regards to your brake function when your ABS fails

31 / 40

Which of the following statements is FALSE:

32 / 40

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

33 / 40

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

34 / 40

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

35 / 40

The amount of liquid you can carry depends on:

36 / 40

Which of the following is a clue another driver is impaired:

37 / 40

The best way to describe a dual air brake system is:

38 / 40

Select the true statement in regards to the braking power of spring brakes.

39 / 40

This item does not need to be checked during the cab check.

40 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

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CDL Category Practice Tests

CDL Practice Test

How To Get A washington Commercial Drivers License

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

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

Washington State CDL DOL applicants must be deemed to be physically fit to operate a commercial vehicle and pass a vision test. Applicants are required to submit the following documents.

  • (Form MCSA-5876) Medical Examiner’s Certificate (This document must be completed by an FMCSA-approved physician.
  • Self-Certification Document

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 Washington. Applicants can be disqualified for having multiple licenses.

Washington 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

washington CDL License Test Tips

All Washington CDL applicants must pass the general knowledge test prior to taking the skills test. This test consists of 50 questions. To pass the Washington test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees. The Washington skills test can be taken 14 days after applicants pass the knowledge test. 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 active duty or honorably discharged from the military within the past year.
  • Have at least 2 years of experience operating a commercial vehicle as part of their military duties.
  • Submit (Form CDL-SK TST WVR) Application for Military Skills Test Waiver.
  • Submit (Form MCSA-5876) Medical Examiner’s Certificate.
  • Submit (Form 649-F) Medical Examination Report for Commercial Fitness Determination.

Additional Information

Information on the Washington State Department of Licensing

The Washington State Department of Licensing administers CDL license testing and regulations in Washington. To get more information contact them via:

Website: https://www.dol.wa.gov/driverslicense/cdl.html

Phone: 360.902.3900


Additional Washington CDL Helpful Links

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