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

The air leakage rate for combination vehicles should not be more than _ psi a minute.

2 / 40

You should_____when checking the slack adjusters on S-Cam brakes.

pull on the slack adjusters after draining the air from the system

make sure there is an inch of leeway in each direction for the slack adjuster

pull on the slack adjuster while the parking brakes are on

pull hard on each slack adjuster while wearing gloves

3 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

None of the answers listed

Lug nuts

Bolt spacers

Rims

4 / 40

When approaching railroad tracks, stop your bus:

Only if you have manual transmission, then proceed with flashers on.

On the tracks so you can see if the train is coming.

15 and 50 feet before railroad crossings.

5-10 feet before railroad tracks.

5 / 40

The sliding mechanism and locking device for a tandem axle on trailers is:

Metal frame

Locking pins/tandem release arm

Suspension system

Apron

6 / 40

Which of the following are possible causes of tire fires?

dual tires that touch and under-inflated tires

improperly loaded cargo and dual tires that touch

poor cargo ventilation or short circuits

loose fuel connections or under-inflated tires

7 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

before the trip, within 50 miles after beginning the trip, and at least every 150 miles or 3 hours

within the first 50 miles of driving

before the trip

during every driving brake on the trip

8 / 40

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

threaded through the locking lever

sticking straight up

below the locking lever

above the locking lever

9 / 40

Which of the following statements about downshifting is NOT true?

downshift before entering a curve

downshift before climbing a hill

downshift when you get to the bottom of a hill

downshift before starting down a hill

10 / 40

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

Tandem release arm

Lug nuts

Locking jaw

Locking pins

11 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

3 seconds

7 seconds

6 seconds

4 seconds

12 / 40

How do you check the air compressor governor "cut in" and "cut out" pressures?

run the engine at a fast idle

all of these answers are correct

monitor the air pressure gauge

decrease the tank pressure by stepping on and off the brake

13 / 40

The average person requires how many hours of sleep per 24 hour period?

7 or 8

8 or 9

6 or 7

5 or 6

14 / 40

Where is compressed air stored?

in the gasoline tank

in the hose lines

in the storage tank

in the compartment for the engine

15 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

oil level

battery fluid level

washer fluid level

coolant level

16 / 40

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

tip

shank

dull section

apex

17 / 40

If there is rust around the nuts, what may it indicate?

There is a leak somewhere.

They are fitted just right.

They need to be changed out.

They are loose.

18 / 40

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

19 / 40

Which of the following statements about the bus interior is false?

Never drive with an open emergency exit door or window.

The seats must be safe for riders all seats must be securely fastened to the bus.

If you use your outside lights, you don't need to turn on red emergency door light.

If there is a red emergency door light, it must work.

20 / 40

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

release the parking brakes and service brakes

activiate the parking brake and service brake

pull out the automatic slack adjustment control knob

release the parking brakes and activate the service brakes

21 / 40

Select the true statement in regards to handing triples and doubles

due to the crack the whip effect, the rear trailer of a 100 foot triple is less likely to tip than a single trailer

none of the answers listed

due to off tracking, a triple bottom rig can come to a stop quicker than a 5 axle semi trailer

a sudden movement of the steering wheel may result in the rear trailer tipping over

22 / 40

Select the true statement in regards to converter dollies:

they typically do not have spring brakes

they typically require a hand converter

they typically have a lot of stopping power because of their size

they typically have small braking power because of their size

23 / 40

Select the true statement about dual air brake systems.

there is a primary system and a secondary system

all of these answers are correct

there is a single set of brake controls

one system controls the front axle and the other controls the rear axle

24 / 40

When you discharge an unruly passenger, you must choose a place that is:

Off the regular route.

Dark and poorly lighted.

The next stop.

As safe as possible, or the next stop.

25 / 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.

it should not be done

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

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

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

26 / 40

Under which two special conditions should you downshift?

before starting down a hill and before entering a curve

before entering a curve and before going up a hill

before starting down a hill and before going up a hill

if there is an accident and in sudden heavy rain

27 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

A ul rating of 15 abc.

A ul rating of 5 b/c or above.

A ul rating of 10 b/c or above.

Any of these are acceptable.

28 / 40

Select the false statement about tractor protection valves.

the trailer air supply valve in the cab controls it

should the trailer air leak, it keeps the air in the tractor

if the air pressure is low it will automatically close

air is allowed to leak from the tractor line when it is closed

29 / 40

Select when you should use the parking brake:

with rare exception, every time you leave your vehicle

each time you leave your vehicle for any amount of time

when you are leaving your vehicle for more than an hour

when in residential areas

30 / 40

When must a driver’s inspection report be completed?

All of these answers are correct.

Only if defects are found.

Before driving your bus.

At the end of each shift.

31 / 40

The manual says you should look _____ ahead while driving.

12 to 15 seconds, at highway speeds, about a quarter of a mile

15 to 20 seconds, at highway speeds, about a half of a mile

5 to 8 seconds, at highway speeds, about an eighth of a mile

9 to 12 seconds, at highway speeds, about a quarter of a mile

32 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

dual

radial

treaded

bias

33 / 40

Select the statement that is not part of the air-brake system:

emergency brake system

parking brake system

clutch brake system

service brake system

34 / 40

A vehicle placarded for Division 1.1, 1.2, or 1.3 explosives:

May never be parked on private property.

May never be left unattended under any condition.

May be left unattended in a safe haven.

May not be parked on the cosignee's property.

35 / 40

A shipment described on the Hazardous Waste Manifest may only be delivered to another _______ carrier or treatment facility, who then signs the ______, giving you a copy which you must keep.

licensed, manifest

registered, uniform hazardous waste manifest

responsible, papers

trucking, uniform hazardous waste manifest

36 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

disconnect the air supply lines after supplying air to the trailer air system via the tractor

have the trailer electric cord to a generator so it can supply braking power

go ahead and couple it

make sure the trailer won't roll when coupling

37 / 40

Make sure that_____before you back under a trailer.

the air supply knob has been pushed it

the air brakes are in an off position

the air supply knob has been pulled out

the trailer brakes have been locked

38 / 40

Take extra caution when driving smooth bore tanks during:

Drive down or up an incline.

All answers listed.

Driving into the wind.

Stops and starts.

39 / 40

If you have to swerve to avoid a hazard, it's important to:

Know where other vehicles are around your bus by checking your mirrors.

Warn passengers with a loud and clear voice.

None of these answers are correct.

Make sure your passengers are wearing seat belts.

40 / 40

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

in a 1/3 way open position

in a closed position

in a halfway open position

in an open position

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