Wisconsin
CDL Practice Test

Use these sample tests as you prepare to gain a CDL in Wisconsin. This site is free to use and you can take these practice tests as many times as you would like. The questions on these tests cover topics and regulations pertaining to the various class levels of CDL licenses in Wisconsin. 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 Quiz" button below to begin. Good luck!

1 / 40

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

bias

treaded

radial

dual

2 / 40

You are inspecting the_____when looking for broken welds, cracks, holes, or other damage to the longitudinal frame member, cross members, box, and floor.

apron

fifth wheel

frame

catwalk

3 / 40

You should_____to uncouple the converter dolly.

lower the landing gear, disconnect the safety chain, and chock the wheels

chock the wheels, disconnect the safety chains, and then lower the landing gear

chock the wheels, lower the landing gear, and disconnect the safey chains

disconnect the safey chains, lower the landing gear, and chock the wheels

4 / 40

Tankers used to transport hazardous materials on vehicles must be marked with:

The chemtrec phone number.

The owner's puco or icc number.

The un or na id number of the product.

The date of manufacture.

5 / 40

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

blood pressure

oil temperature

oil pressure

air brake pressure

6 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

service brake system

lock brake system

none of the answers listed

engine brake system

7 / 40

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

the system pressure will not build up

the connected brake circuit will become a back up air tank

this should never be done

it keeps water and dirt out of the lines

8 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

To make sure the electrical connections are good.

To decease heat and noise.

To make sure that uncoupling easier.

To prevent any steering problems.

9 / 40

The emergency air line is used to:

engage the trailer brakes when there is an air pressure loss

engage the tractor's front brake when there is air pressure loss

to alert emegency services when there is a problem

provide back up air pressure

10 / 40

Which of the following will confirm that you are driving with anti-lock brakes?

The bus operators manual.

Red indicator lamp on the brake cylinder.

Yellow abs malfunction lamp on the instrument panel will light when you start the engine.

The certification on the driver side door.

11 / 40

It is good practice to_____when uncoupling.

make sure the electrical cable is hanging with the plug end down

have the glad hands coupled together

all answers are appropriate

have the glad hands coupled to the dummy couplers

12 / 40

Select when you should use the parking brake:

each time you leave your vehicle for any amount of time

with rare exception, every time you leave your vehicle

when you are leaving your vehicle for more than an hour

when in residential areas

13 / 40

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

May never be parked on private property.

May not be parked on the cosignee's property.

May never be left unattended under any condition.

May be left unattended in a safe haven.

14 / 40

Select the true statement:

Lighter vehicles requiring more braking power to stop compared to heavier vehicles.

None of the answers listed.

Wait as long as possible to brake when driving a heavy vehicle.

A "bobtail" tractor will take longer to stop than a combination vehicle that is fully loaded down to the maximum weight.

15 / 40

What are you checking when looking at the lubrication level on a dipstick?

The oil level

The windshield wiper fluid level

The horn fluid level

The power steering fluid level

16 / 40

Air pressure should build___with a dual air system.

from 60 to 100 psi in 45 seconds

from 70 to 125 psi in 60 seconds

from 50 to 80 psi in 60 seconds

from 85 to 100 psi in 45 seconds

17 / 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.

latched, closed

latched, open

free, open

free, closed

18 / 40

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

tip

dull section

apex

shank

19 / 40

It has just reached freezing. Which of the following areas is slippery?

all of these answers are correct

wet-looking road

a shaded area

a bridge

20 / 40

The best way to test if the spring brakes come on automatically is to:

all of these answers are correct

apply pressure on and off the brake pedal until the manufacturer's low psi specification has been met for the spring brakes to deploy

apply pressure on and off the brake pedal until the parkng brake valve pops out on tractor-trailer vehicles

apply pressure on and off the brake pedal until the parking valve pops out on single vehicles

21 / 40

Water is drained from the compressed air tanks because:

braking power is decreased due to the low boiling point of water

to keep the oil in the air compressor clean

the water could freeze in cold weather and cause braking failure

the water will over cool the compressor

22 / 40

Which of the following statements about overhead space is true?

warning lights are always installed on low bridges and overpasses

an empty van is lower than a loaded one

the heights posted at bridges are usually accurate

the weight of the cargo changes a truck's height

23 / 40

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

Raised and that the handle is secured.

Raised and that the handle is hanging free.

Down and that the handle is secured.

Down and that the handle is hanging free.

24 / 40

What is the reason that placards are used?

communicate the risk

so hazmat is not mixed with food

to prevent terrorism

it is the law

25 / 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

26 / 40

If you are stopped on an incline, how can you start moving without rolling back?

shift to neutral

aggressively pump the accelerator

apply the parking brake

fully engage the clutch

27 / 40

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

the linings should fit loosely around the brake shoe

they are not allowed to have any cracks

they should always be kept well-greased up

they should not have cracks that are longer than half the width of the friction area

28 / 40

A slack adjuster is:

a lever that connects the brake chamber push rod with the foundation brake camshaft

a lever that connects the brake camshaft with the brake chamber

a lever that connects the return spring and the brake chamber push rod

a lever that connects the brake drum to the brake shoe

29 / 40

At what pressure is the safety valve in the air compressor tank set to open?

150 psi

225 psi

100 psi

125 psi

30 / 40

Anti-lock brakes:

Work only when you activate in-cab switch.

Are not available in mosst busses.

Keep your wheels from locking during hard brake application.

Lengthen stopping distance.

31 / 40

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as.

defensive driving

aggressive driving

road rage

distracted driving

32 / 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

8 seconds

13 seconds

11 seconds

33 / 40

The basic description of a hazardous material includes the hazard class, the identification number, and the proper shipping name. Which one must appear first on the shipping paper?

The hazard class.

The proper shipping name.

The identification number.

The box number.

34 / 40

The method used to make sure the spring brakes will come on automatically is to:

Apply pressure on and off the brake pedal to increase the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure while driving at a high a speed. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure meets to the manufacturer’s specification.

Apply pressure on and off the brake pedal to decrease the air tank pressure. The parking brake knob should pop out when the air pressure drops to 120 psi.

35 / 40

The correct trailer height when coupling the rear trailer is:

there is 5 inches of space between the lower and upper fifth wheel

the kingpin is touching the fifth wheel

slightly lower than the center of the fifth wheel

when the locking jaws are open around the kingpin

36 / 40

Remember to_____when steering to avoid a crash while driving doubles.

have both hands on the steering wheel

be prepared to counter-steer

keep your foot off the brake while turning

all answers listed

37 / 40

Animals and human foodstuffs should not be loaded in the same vehicle with?

Flammable liquids

Flammable gases

Explosives

Poisons

38 / 40

What is a supply pressure gauge used for?

it tells you how much slack is in the slack adjusters

all of these answers are correct

it tells you how much pressure is in the air tanks

it tells you how much pressure is in the air lines

39 / 40

At around____the governor allows the air compressor to start pumping again:

100 psi

225 psi

125 psi

175 psi

40 / 40

Surge affects the handling of a tanker by:

Increasing the wind drag.

Allowing you to take tighter turns.

Moving the truck in the direction the liquid flows in.

None of the answers listed.

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A Wisconsin Commercial Drivers License

To be eligible for a CDL in Wisconsin, applicants must meet the following age eligibility requirements:

Be at least 18 years old to operate a commercial vehicle intrastate (within Wisconsin only).
Be at least 21 years old to operate a commercial vehicle interstate (outside of Wisconsin).

Wisconsin CDL applicants must be medically certified that they are physically fit to operate a commercial vehicle and pass a vision test.

Applicants are required to submit the following documents:

(Form MV3230) Commercial Driver: Tier of Operation
(Form MCSA-5876) Medical Examiner’s Certificate

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 Wisconsin. Applicants can be disqualified for having multiple licenses.

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

Wisconsin CDL License Test Tips

Knowledge Test
All Wisconsin CDL applicants must pass the general knowledge test prior to taking the skills test. To pass the Wisconsin test, applicants must score 80 percent or higher. Applicants who require additional endorsements must pass additional tests and pay the required fees.

Skills Test
The Wisconsin 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 CDL Waivers
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:

Reside in Wisconsin.
Be currently active in the military.
Have operated a commercial vehicle as part of their military duties.
Have been honorably discharged from the military within the past 12 months.
Submit (Form MV3588) Military Service CDL Skills Test Waiver Application. (A portion of this document must be completed by the commanding or training officer.

Additional Information

Information on the Wisconsin Department of Transportation

The State of Wisconsin Department of Transportation is the authority for CDL regulations in Wisconsin. To get more information contact them via:

Website: https://wisconsindot.gov/Pages/dmv/com-drv-vehs/cdl-how-aply/cdl-how-to-apply.aspx

Phone: 608.264.7447

Additional Wisconsin CDL Helpful Links

Please use the links below to access Wisconsin CDL testing resources and to learn more about practice driving tests for the state of Wisconsin.

Wisconsin CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A Wisconsin Commercial Drivers License

Hit the Open Road

Wisconsin CDL License Test Tips

Additional Information

Information on the Wisconsin Department of Transportation

Additional Wisconsin CDL Helpful Links

Wisconsin
CDL Practice Test