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

On the Hazardous Materials Table, column 1 shows:

How much of the material can be put in a vehicle without placarding.

How to ship an item.

To what shipping mode the information on that line applies.

What materials can be loaded together.

2 / 40

You should turn off your engine when loading flammable liquid unless:

The material does not need a placard.

You need the engine to run the pump.

You are loading at night and need the headlights.

You are a non-smoker.

3 / 40

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

look for an escape ramp or an escape route

put the gears in neutral

downshift

pump the brake pedal

4 / 40

The manual says you should look _____ ahead while driving.

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

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 / 40

In Column 1 the symbol "I" means:

Invalid substance.

Iodine.

International transportation.

International restrictions.

6 / 40

When not towing a trailer, why should the tractor glad hands be locked?

the system pressure will not build up

this should never be done

it keeps water and dirt out of the lines

the connected brake circuit will become a back up air tank

7 / 40

Select the inappropriate way to test for the low pressure warning signal.

turn off the engine

have the electrical power on

decreased the air pressure by stepping on and off the brake pedal

ask for a pedestrian to listen for the signal

8 / 40

Select how you would check the truck's slack adjusters.

all of these answers are correct

while wearing gloves, pull hard on each slack adjuster that you can reach

listen for any strange noises while applying pressure to the brake pedal

brake hard after accelerating

9 / 40

Which of the following about the front tires on a commercial bus is true?

Can be recapped, but never regrooved.

Must not have recapped or regrooved tires.

Can be regrooved or recapped as long as they have 4/32 tread depth.

Must not be recapped, but can be regrooved.

10 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

11 / 40

What keeps air in the tanks should the air compressor develop a leak?

the engine protection valve

the one-way check vavle

the air compressor

the tractor relay valve

12 / 40

When inspecting your bus, you must make sure that:

Every handhold and railing is secure.

Rider signaling devices are working.

All of these answers are correct.

Emergency exit handles are secure.

13 / 40

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

once every 14 days

every 4 hours of the working shift

once every 7 days

at the end of each working day

14 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

in a closed position

in a 1/3 open position

in a halfway closed position

in an open position

15 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

Coolant pressure gauge

Voltmeter gauge

Oil pressure gauge

Air pressure gauge

16 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

Electric/air lines

The lockjaw

Mud flaps

Tires

17 / 40

What will probably happen if the converter dolly is still under the second trailer and the pintle hook is unhooked?

nothing will happen

the air lines will explode

the dolly tow bar could fly up

the engine brakes will unlock

18 / 40

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

Off the regular route.

The next stop.

As safe as possible, or the next stop.

Dark and poorly lighted.

19 / 40

"Outages" is the word to describe the amount of space required for liquids to expand in as they warm.

True

False, it's when the vehicle engine fails in some way

False, it's when the vehicle air braking system fails in some way

False, it's when the vehicle power system fails in some way

20 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

no matter how you turn the steering wheel, the rig will continue in a straight line

there will be a trailer jackknife

the rig will slide sideways but stay in a straight line

nothing will occur

21 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

increase your following distance

drive with extra care in mountains and in bad weather

all of the answers listed

none of the answers listed

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

it should not be done

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

23 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

the vehicle is manufactured after 2005

the vehicle is manufactured after 2001

the vehicle is manufactured after 1990

the vehicle is manufactured after 1998

24 / 40

If you park the trailer at an angle to the tractor when uncoupling:

you will have more space to maneuver in the lot

the process will be faster and easier

damage could occur to the landing gear

you won't have to take as many steps around the vehicle

25 / 40

What school bus accidents should be reported?

Only accidents determined to be the fault of the bus driver.

No accidents.

All accidents.

Only accidents casusing injury.

26 / 40

The golden rule for school buses when approaching and crossing railroad tracks is:

Stop, go, and stop.

Stop, look, and listen.

None of these answers are correct.

Stop, look, and turn on the radio lights overhead.

27 / 40

School buses are one of the safest means of transportation. What two key factors contribute to this impressive safety record?

Vehicles and drivers.

Bus drivers and driver training.

School district policies and police involvement.

Vehicles and road conditions.

28 / 40

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

1/8 inch

1/12 inch

1/30 inch

none of the answers listed

29 / 40

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

pull on the slack adjuster while the parking brakes are on

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 hard on each slack adjuster while wearing gloves

30 / 40

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

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

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

you don't need to check it

put the tractor in a high gear and quickly pull ahead

31 / 40

When approaching railroad tracks, stop your bus:

5-10 feet before railroad tracks.

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.

32 / 40

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

when pulled out it supplies the trailer with air and when pushed in it shuts off the air and puts on the trailer emergency brakes

when pushed it it supplies the trailer with air and when pulled out it supplies the tractor with air

when pushed in it supplies the trailer with air and when you pull it out it shuts off the air supply and puts on the trailer emergency brakes

when pushed in it supplies the tractor with air and when pulled out it supplies the trailer with air

33 / 40

Never refuel your bus:

Without a static chain.

In a closed building with passengers on board.

With a higher grade of fuel.

With any of the windows open.

34 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

it could cause the trailer to skid

it should not be used on dry roads due to road conditions

the trailer brakes will not be evenly applied

it releases too much air from the system

35 / 40

Select the first action to do when the low air pressure warning comes on:

come to a stop and safely park as soon as possible

adjust the engine brake

shift into a higher gear

release the supply control valve

36 / 40

The most dangerous time during the school bus ride is:

On long bus journeys.

When the students become unruly on the bus.

Crossing railway crossing.

When loading and unloading students.

37 / 40

When accelerating:

speed up smoothly and gradually and avoid jerking

do not engage the clutch before you take your foot off the brake

"hammer down" when your wheels start to spin

always use the parking brake to slow down

38 / 40

The best way to have control on curves is:

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

you do not need to do anything different

keep pressure on the brake pedal through the turn

to shift to a lower gear before entering the curve

39 / 40

Select the true statement about baffled tankers:

It has walls with holes inside for liquid to flow through.

It has separate tanks.

It has hollow balls in it to slow the motion of the liquid in the trailer.

None of the answers listed.

40 / 40

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

about 1/4 mile

about two car lengths

about two truck lengths

about the length of a football field or 100 yards

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