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

Your vehicle is going down a long hill and your brakes begin to fail. What should you do?

2 / 40

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

3 / 40

Select the true statement about convex ("spot") mirrors.

4 / 40

How often should you check the cargo you are transporting?

5 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

6 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

7 / 40

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

8 / 40

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

9 / 40

Select the true statement in regards to managing the space to the sides:

10 / 40

Select the load of the trailer that will require the shorter distance to stop.

11 / 40

Cargo tanks are:

12 / 40

Before pulling away, make sure the landing gear of the trailer is:

13 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

14 / 40

Which of the following statements about loading and unloading cargo tanks is false?

15 / 40

A trailer is at the right height to have the tractor backed up to it when:

16 / 40

How do you check the coolant level?

17 / 40

Why do air brakes take longer to stop than hydraulic brakes?

18 / 40

A shipper’s certification is best described as _____.

19 / 40

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

20 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

21 / 40

The baffles in a tank trailer help to control:

22 / 40

When approaching railroad tracks, stop your bus:

23 / 40

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

24 / 40

Select the true statement in regards to brake drums or discs:

25 / 40

The cause of almost half of all truck driver deaths are:

26 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

27 / 40

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

28 / 40

If students must cross the street, when they get off the bus, which statement is true?

29 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

30 / 40

How often should you check your cargo?

31 / 40

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

32 / 40

You are required to have a tank endorsement when transporting:

33 / 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.

34 / 40

The floor liner for explosives may not:

35 / 40

Which of the following is a reason that shippers package material?

36 / 40

This gauge will indicate if the generator or alternator is charging:

37 / 40

What is the standee line?

38 / 40

With Division 1.1, 1.2, or 1.3 Class A or B, how close can you park to a bridge, tunnel, or building?

39 / 40

You should____in order to inspect the coupling.

40 / 40

Liquid surge affects the handling of a tanker by:

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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.