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

For Division 1.1 or 1.2 Explosives A, should the floor liner required be stainless steel?

Any type of floor liner is sufficient

Yes

Never use a floor liner for any explosive class

2 / 40

What are the three types of emergency equipment that you must have with your vehicle?

warning devices for parked vehicles, first aid kit, flares

first aid kit, fire extinguisher, flares

none of these answers are correct

fire extinguisher, spare electrical fuses, warning devices for parked vehicles

3 / 40

You are required to have a tank endorsement when transporting:

Passengers

Bulk fertilizer

Materials that are hazardous

Gas or liquid

4 / 40

What is the purpose of the supply pressure gauge?

to inform you about how hot the air in the tank is

all of these answers are correct

to inform you of how much air is in the tank

to inform you if there is too little air in the tank

5 / 40

Check to ensure that____when inspecting the coupling.

the landing gear handle is free to hang down

the electrical cable is unplugged

there is no slack at all in the air lines

there is minimal slack in the air lines

6 / 40

When should the trailer hand valve be used?

all answers listed

to test the trailer brakes

when driving at highway speeds

when parked in a service lot

7 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

weight distribution

percentage of alcohol

the fuel to air ratio

percentage of water

8 / 40

How do you know when your brakes are fading?

to control your speed on a downgrade you have to push harder on the brake pedal

your speed increases when pressure is removed from the brake pedal

to control your speed on a downgrade you have to apply less pressure to the break pedal

the brake pedal flops to the cabin floor

9 / 40

Select the true statement:

None of the answers listed.

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

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

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

10 / 40

It is good practice to_____when uncoupling.

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

all answers are appropriate

have the glad hands coupled to the dummy couplers

have the glad hands coupled together

11 / 40

When checking the wheelchair lift, the things you should look for are:

Bent or dinged lift floor.

Leaking, damaged, or missing wheelchairs.

Stripped screw drive linkages and fluid drips.

Leaking, damaged, or missing parts and that the lift is fully retracted and latched.

12 / 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.

aggressive driving

distracted driving

road rage

defensive driving

13 / 40

If you have riders on board, you must never refuel:

Unless on a scenic tour bus.

With any window open.

In a closed building.

At any time.

14 / 40

You do not have to stop at railroad crossings, but must slow down and carefully check for other vehicles:

At crossings marked as "exempt" or "abandoned".

If a traffic signal is green.

Where a policeman or flagman is directing traffic.

All of these answers are correct.

15 / 40

What is the safest way to stop unruly behavior on the bus?

Keep checking the rear view mirror so you can see what happened and report to the principal.

Have the unruly students move to the front of the bus.

Pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them.

Yell loudly for the students to sit down and behave themselves.

16 / 40

Which of the following is the proper definition of a cargo tank?

A bulk container permanently attached to a vehicle.

A bulk container which can be securely affixed to a vehicle.

None of these answers are correct.

A bulk container not permanently attached to a vehicle.

17 / 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

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

all answers listed

the truck requires increased following distance compared to smaller vehicles

18 / 40

Which of the following should you NOT do if you experience a tire failure?

engage the brakes hard and immediately

stay off the brake pedal

you need to be aware that a tire has failed

hold the steering wheel firmly

19 / 40

A safe haven is:

A place where it is safe to dump any kind of hazardous materials.

A place to stay once you have reported your company for illegal activity.

The slang term for the last stop at the end of your driving day when carrying hazardous materials.

A place that has been approved to park unattended vehicles carrying explosives.

20 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

Turn it off after product transfer, before you unhook the hose.

Turn it off during product transfer, while unhooking the hose.

Turn it off before product transfer, before you hook the hose.

None of these answers are correct.

21 / 40

What are spring brakes?

they are big springs with air pressure in them if the air pressure decreases, the brakes are applied

they are large springs that are held closed by air pressure if the air pressure is increased the brakes are applied

none of the answers listed

they are powerful springs that are restrained by air pressure when the air pressure is removed, the brakes are applied

22 / 40

In column 1, the "D" symbol means:

Domestic transportation

Detonators

Domestic restrictions

Devices

23 / 40

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

For fresh air

Whenever you enter a tunnel

First day of spring

Never

24 / 40

What is the most important reason for doing a school bus inspection?

For safety required by federal, state, and local laws.

To assist the school principal with their report.

To check for flat tires.

To give the mechanic something to do.

25 / 40

Make sure that_____before you back under a trailer.

the air brakes are in an off position

the trailer brakes have been locked

the air supply knob has been pulled out

the air supply knob has been pushed it

26 / 40

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

Bolt spacers

Rims

None of the answers listed

Lug nuts

27 / 40

A minimum tread depth of 2/32 inch is required for:

Donut tires.

Parking axle tires.

Non-steer axle tires.

Driving axle tires.

28 / 40

Bus drivers must have a commercial driver license if they drive a vehicle designed to seat more than:

20 or more persons, excluding the driver.

10 or more persons, including the driver.

16 or more persons, including the driver.

15 or more persons, including the driver.

29 / 40

Liquid surge affects the handling of a tanker by:

Allowing you to take tighter turns.

Allowing you to stop faster.

Decreasing the wind drag.

Moving the truck in the direction of liquid flow.

30 / 40

Two causes of tire fires are ______.

hot brakes and under-inflated tires

duals that touch and road debris

under-inflated tires and poor retreads

under-inflated tires and duals that touch

31 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

determine if there are any hills coming up

determine if there are any upcoming traffic lights that might require you to stop

look for vehicles coming into your lane

look for brake lights from slowing vehicles

32 / 40

What is the normal operating range for a truck's oil pressure?

This is engine-specific

30-75 psi

40-60 psi

20-30 psi

33 / 40

How often should air tanks be drained?

once a day

every 6 hours

every 4-5 days

every 7 days

34 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

Classes 1, 3, and 4

Classes 1, 21, and 3

Classes 1, 4, and 51

Classes 1, 3, and 6

35 / 40

A tractor should not be backed under a trailer until the whole air system is:

is at half of the maximum pressure

is between 40 and 60 psi

at a normal pressure

is between 50 and 80 psi

36 / 40

Select the statement that describes smooth bore tanks:

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

They are divided down into smaller tanks.

None of the answers listed.

They are 1 large tank.

37 / 40

Select the false statement about tractor protection valves.

the trailer air supply valve in the cab controls it

if the air pressure is low it will automatically close

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

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

38 / 40

Select when you should use the parking brake:

when you are leaving your vehicle for more than an hour

each time you leave your vehicle for any amount of time

with rare exception, every time you leave your vehicle

when in residential areas

39 / 40

The purpose for the emergency air line is:

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

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

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

none of the answers listed

40 / 40

The best way to have control on curves is:

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

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

Your score is

The average score is 42%

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