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

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

when the GVCW is above 20,000 lbs

when the vehicle is runaway

yes

2 / 40

The blind spot behind the bus could extend to how many feet?

100 feet

400 feet

200 feet

300 feet

3 / 40

Which of these is a good rule for backing a straight bus?

Back toward the side opposite the driver.

Use your head as the mirrors are unreliable.

Back and turn toward the driver's side.

Back quickly while no one is coming.

4 / 40

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

May be left unattended in a safe haven.

May never be left unattended under any condition.

May not be parked on the cosignee's property.

May never be parked on private property.

5 / 40

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

rim, lug nuts, tire

leaf spring, vehicle frame, torque rod

tie rod, spindle, pitman arm

main spring, axle, spring shackle

6 / 40

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

on emergency and service air lines

on parking brake lines

on service air lines

on emergency air lines

7 / 40

The baffles in a tank trailer help to control:

The overall weight of the vehicle.

The distrubition of weight.

The movement of liquid from front to back.

The flow of liquid side to side.

8 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

The carrier's insurance policy.

None of these answers are correct.

A gas mask.

The written route plan.

9 / 40

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

They are fitted just right.

They need to be changed out.

There is a leak somewhere.

They are loose.

10 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

11 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

a guide explaining what materials can be hauled together in the same vehicle and a guidebook for firefighters, police, and industry workers on how to protect themselves and the public from hazardous materials

a guidebook for firefighters, police, industry workers, truck drivers, dock workers, and shippers on how to protect themselves and the public from hazardous materials

a guide explaining what materials can be hauled together in the same vehicle

none of these answers are correct

12 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

this is the only situation in which you should use the hand brake

the tractor wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to push the tractor and straighten out

the trailer wheels caused the skid in the first place once the trailer wheels grip the road again, the trailer will start to follow the tractor and straighten out

none of the answers listed

13 / 40

Which trailer should be the first one after the tractor?

the trailer that weighs the least

none of the answers listed

the trailer that is the shortest in length

the trailer that weighs the most

14 / 40

Select the step that comes first:

apply a firm pressure to the trailer brakes

lower the landing gear

connect the air supply lines

shift into reverse

15 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

oil pressure

blood pressure

air brake pressure

oil temperature

16 / 40

When driving in very hot temperatures, you should:

insure that you have enough antifreeze in the system

all of these answers are correct

let your tires cool down (remain stopped) if they are too hot to touch

check your tires every 2 hours or every 100 miles

17 / 40

The parking brakes should be used____in air brake vehicles.

as rarely as possible

every time the vehicle is parked

only when parked on an incline

only during post trip inspection

18 / 40

Which of the following statements about overhead space is true?

the weight of the cargo changes a truck's height

an empty van is lower than a loaded one

warning lights are always installed on low bridges and overpasses

the heights posted at bridges are usually accurate

19 / 40

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

The person in attendance must be within 50 ft of the tanker.

The person attending the tanker must have a clear view of it.

The person in attendance must be authorized and able to move the vehicle.

The person in attendance must be aware of the danger.

20 / 40

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

Never

First day of spring

Whenever you enter a tunnel

For fresh air

21 / 40

Select the true statement about converter dollies:

they typically require a glad hand converter

because of their small size they have little braking power

all answers listed

they usually do not have spring brakes

22 / 40

How can you check slack adjusters?

by pulling hard on each slack adjuster

by using a fixed wrench

it is not possible to check manually

by frequently checking the pressure gauge

23 / 40

Which of the following is a necessary qualification for non-bulk packaging?

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

All of these answers are necessary qualifications.

24 / 40

Select the true statement in regards to brake drums:

They are bolted to the wheels.

They are located at both ends of the axles of the vehicle.

Hold the brake linings and shoes.

All of these answers are correct.

25 / 40

If there is not a sight glass to check the oil level you are required to look for leaks around the _____.

wheel rims

transmission

axle seals/hub oil

brake pads

26 / 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 an open position

in a 1/3 way open position

in a closed position

in a halfway open position

27 / 40

Select the statement that describes smooth bore tanks:

They are divided down into smaller tanks.

They are divided with holes from liquid to flow through controlling surge.

They are 1 large tank.

None of the answers listed.

28 / 40

To test the security of the tractor semi trailer connection you should:

look at it carefully after pulling forward gently in a low gear against the locked trailer brakes

with the trailer brakes locked, rock the trailer back and forth

you don't need to check it

put the tractor in a high gear and quickly pull ahead

29 / 40

The designation RQ identifies the material's:

Reportable quantity

Regulatory quantity

Regulatory quotient

Reference quotient

30 / 40

The best way to have control on curves is:

to shift to a lower gear before entering the curve

you do not need to do anything different

keep pressure on the brake pedal through the turn

to decrease to your safe speed before entering the curve and then accelerate through it

31 / 40

Which seats not securely fastened to the bus are usually allowed?

None of these answers are correct.

Window seats.

Any of the last row seats.

The driver's seat only.

32 / 40

How should the trailer be lined up when preparing to back the tractor up?

about 12 degrees to the right

about 12 degrees to the left

directly behind the trailer

directly in front of the trailer

33 / 40

If you are required to stop at railroad crossings, you must:

Remember to never shift gears while crossing tracks.

Stop 15 to 50 feet before the nearest rail.

All of these answers are correct.

Proceed only when you are sure no train is coming.

34 / 40

Which of the following materials would be an acceptable floor liner for moving Division 1.1 or 1.2 materials?

All of these answers are correct

Carbon steel

Stainless steel

Non-ferrous metal

35 / 40

You should_____when an emergency requires you to quickly stop your tanker.

keep a firm pressure on the brake pedal

use the emergency brakes only

turn off the abs and brace for impact

use stab or controlled braking

36 / 40

Some city transit buses may have a brake-door interlock system, this system:

Should be used in place of the parking brake.

Should be used in emergencies.

Releases the brakes.

Works when the rear door is open.

37 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

100 feet, 200 feet, and 300 feet toward approaching traffic

50 feet, 100 feet, and 150 feet toward approaching traffic

20 feet, 50 feet, and 100 feet toward approaching traffic

10 feet, 100 feet, and 200 feet toward approaching traffic

38 / 40

What is the movement of the liquid called when the tanks are partially filled?

Knocking

Crashing

Surging

Framing

39 / 40

Select when you should use the hand valve to park a combination vehicle.

when parking in a commercial lot

when parking at a loading dock

when parking on a downgrade

never

40 / 40

How should the hand valve be used?

to test the trailer brakes

only when accompanied by the service brakes

only when accompanied by the foot brake

only when the trailer is loaded to its maximum weight

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