washington
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

What does the drain valve for air tanks remove?

oil and water

water and air

oil and dirt

air and oil

2 / 40

If you double your speed, what will happen to your stopping distance?

none of these answers are correct answers are correct

it increases by four times

it increases by two times

it stays about the same

3 / 40

When this item is missing or loose, movement may occur between the fifth wheel assembly and the frame.

Locking jaw

Tandem release arm

Lug nuts

Locking pins

4 / 40

You should_____when the low pressure warning is activated:

wait until the air brakes kick in automatically

pump the brake pedal to come to a stop immediately

maintain highway speed and keep an eye on your air pressure gauge

come to a safe stop while you still have control of the brakes

5 / 40

What is the benefit of ABS?

all of these answers are correct

it prevents the wheels from locking up during heavy braking or slippery conditions

it provides an added layer of safety for truck drivers

it decreases your stopping distance

6 / 40

Select the item that is not checked in the engine compartment:

The level of the oil

The coolant level

The oil pressure

The power steering fluid

7 / 40

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

8 / 40

What is a king pin?

it is a pin that locks the air brake lines together

it is a pin that a driver receives for being a safe driver

it is a pin that locks the trailer to the tractor on the fifth wheel

it is a pin that holds the wheel on to the axles

9 / 40

Commerical vehicles typically have this type of brake.

S-Cam brakes

stab brakes

drum brakes

rectangle brakes

10 / 40

What are the 3 methods for securing a second trailer before coupling?

chocking the tires, parking on level ground, and charging the air tank

all answers listed

parking on level ground, chocking the tires, and charging the trailer air tank if it doesn't have spring brakes

parking against another trailer, locking the trailer door, and chocking the tires

11 / 40

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

The brake pushrod

The brake chambers

The bounce absorbers

The air lines

12 / 40

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

Oil pressure

Gas tank

Coolant

Voltmeter/ammeter

13 / 40

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

Not allow the rider to do it.

Instruct the rider to sit next to an open window.

Put the materials in the bus's "safe box".

Have the rider pay a second fare.

14 / 40

Where are shut off valves located on trailers that are doubles or triples?

on service air lines

on parking brake lines

on emergency air lines

on emergency and service air lines

15 / 40

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

The legal weight limits.

All of the answers listed.

The weight of it.

The amount of expansion that will occur.

16 / 40

The purpose for the emergency air line is:

to supply air to the trailer air tanks and, on combination vehicles, controls the emergency brakes

none of the answers listed

supply air to the tractor air tanks and on combination vehicles controls the emergency brakes

supply air to the trailer air tanks and on combination vehicles, controls the service brakes

17 / 40

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

Down and that the handle is hanging free.

Raised and that the handle is hanging free.

Raised and that the handle is secured.

Down and that the handle is secured.

18 / 40

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

low beams, high beams, four way flashers, turn signals

oil, transmission, air compressor, radiator

windshield, wipers, mirrors, hood latches

tires, steering parts, suspension parts, headlights

19 / 40

What should you hook up before backing a tractor to a trailer for coupling?

the electrical service line

there is nothing to be hooked up

the service and emergency air lines

the safety bar

20 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

the hand valve will stop functioning

the trailer tank pressure will be gone

the trailer emergency brakes will kick on

the tractor spring brakes will kick on

21 / 40

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

pull off the road and park in an open area

find a service station to pull into

open the door and jump out of the vehicle

open the hood and let the flames die down

22 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

to alert drivers behind you that there are hazards ahead

to warn vehicles approaching you from behind that you are driving slowly

to signal to tailgaters that they are too close to your vehicle

to warn drivers behind you when you need to slow down

23 / 40

Students exit the bus and walk:

At least 10 feet away from the side of the bus.

The distance it takes to clear the danger zone.

At least 8 feet away from the side of the bus.

Across the street.

24 / 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.

should be used with caution and only if you are aware of the dangers

it is the best possible way to brake and maintain the truck in a straight path

it will result in less skidding than when just using the brake pedal alone

it should not be done

25 / 40

When backing, what is the best method to use to avoid blind spots?

back towards the driver's side, where you can see better

look at your path

use a helper

use mirrors on both sides

26 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

narrow

high

long

low

27 / 40

In what position should shut off valves on the rear of the last trailer be in on a set of double trailers?

in a closed position

in an open position for the rear trailer and a closed position for the front trailer

in an open position

in a closed position for the rear trailer and an open position for the front trailers

28 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

6 seconds

13 seconds

11 seconds

8 seconds

29 / 40

With most hazardous materials, you may park within 5 feet of the road briefly, if your work requires it. The materials that are the exception and do not allow parking this close to the road are:

Explosives A and B

Acids and poisons

Corrosives and oxidizers

Liquids

30 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

the risk of trailer jackknifes and tipping is increased compared to shorter trucks

all answers listed

extra care should be taken when driving in bad weather and in the mountains

the truck requires increased following distance compared to smaller vehicles

31 / 40

A driver of a tanker should use an escape ramp when _____.

the vehicle has lost braking power

only when it's raining

only in ideal conditions

when the tanks has bulkheads

32 / 40

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

The shipper

The carrier

The dock workers

The driver

33 / 40

Select why you should not use the trailer hand valve while driving:

you should only ever use the parking brake

there is a possibility it will make the trailer skid

it will cause the tractor to shake

it does not work as well as the foot brake does

34 / 40

This object should not be worn dangerously thin where visible.

The air system lines

All answers listed

The brake chambers

The brake linings

35 / 40

You should have the fifth wheel plate greased as recommened because:

it will ensure a good air line connection

it will prevent steering problems

it will reduce noise and heat

it will ensure a good electrical connection

36 / 40

Do empty trucks have the best braking?

yes, but only if the truck is newer than 1998

yes

yes, but only on wet surfaces

37 / 40

Which of the following statements about "Radioactive" labels is true?

Black iii indicates the highest level of radioactivity.

Yellow ii indicates the highest level of radioactivity.

White i indicates the highest level of radioactivity.

Yellow iii indicates the highest level of radioactivity.

38 / 40

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

downshift

pump the brake pedal

put the gears in neutral

look for an escape ramp or an escape route

39 / 40

Play of the steering wheel should not exceed:

5 degrees

30 degrees

10 degrees

15 degrees

40 / 40

You must not allow riders to stand:

Within two feet of any window.

In front of the standee line.

Between the wheel wells.

Within two feet of an emergency exit.

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.

washington CDL Practice Test