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

One reason hauling liquids in tank vehciles require special care is:

2 / 40

Which of the following is a key steering component?

3 / 40

Select the definition of "off-tracking."

4 / 40

What is a technical name?

5 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

6 / 40

There must not be more than_____for engine compartment belts.

7 / 40

Some hazardous materials may not be loaded together with other hazardous materials. The prohibited combinations are listed in the:

8 / 40

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

9 / 40

What are the liquid tight separations between compartments inside tanks called?

10 / 40

The two other places where the hazardous identification number must appear are:

11 / 40

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

12 / 40

Select the true statement about dual air brake systems.

13 / 40

Which of the following is NOT a part of the steering system?

14 / 40

If you are drowsy, you should _____ before you drive.

15 / 40

What kind of surge occurs with baffles?

16 / 40

Select the statement that best describes what the trailer air supply control does:

17 / 40

When should you drain air tanks that do not have an automatic tank drain?

18 / 40

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

19 / 40

You should_____when the low pressure warning is activated:

20 / 40

When should air tanks be drained?

21 / 40

There should be ___space between the upper and lower fifth wheel after coupling.

22 / 40

The method for testing hydraulic brakes for leaks is to _____.

23 / 40

Before backing under the trailer after connecting the air lines you should:

24 / 40

What does the service brake system do?

25 / 40

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

26 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

27 / 40

Select the true statement about empty trucks:

28 / 40

When stopping for railroad tracks, you must stop no closer than how many feet before the nearest track?

29 / 40

The most stable tanker shape is:

30 / 40

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

31 / 40

Select the false statement about suspension:

32 / 40

You should be extra cautious when___while driving a smooth bore tanker combination.

33 / 40

Why should you know the outage?

34 / 40

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

35 / 40

A slack adjuster is:

36 / 40

How do you determine if slack adjusters need to be adjusted?

37 / 40

How often should you check your cargo?

38 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

39 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

40 / 40

A shipper’s certification is best described as _____.

Your score is

The average score is 0%

5/5 - (1 vote)

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.