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

Select the true statement about empty trucks:

They come to a stop faster when you use only the emergency brake.

They have better traction on wet roads than full tanks.

They can take longer to stop than a truck with a full tank.

All answers listed.

2 / 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.

3 / 40

What is the most important reason for doing a vehicle inspection?

safety for yourself and other road users

to insure that you will achieve the best gas mileage

to save you money by preventing costly repairs

federal and state laws require you to inspect your vehicle

4 / 40

On tandem axle for trailers, the sliding mechanism and locking device is:

Fifth wheel

Metal frame

Tandem release (locking pin/arm)

Air brake system

5 / 40

The compressor is connected to the engine via _____?

v-belt or gears

stag gears

lines

r-belt

6 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

hydraulic brakes

all answers listed

emergency brakes

engine brakes

7 / 40

On the Hazardous Materials Table, column 1 shows:

To what shipping mode the information on that line applies.

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

What materials can be loaded together.

How to ship an item.

8 / 40

If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?

Inform someone and not load the battery acid.

Make sure there is plenty of space between the two.

Make sure the silver cyanide is loaded on top of the battery acid.

Make sure the battery acid is loaded on top of the silver cyanide.

9 / 40

If hazardous material is spilling from your vehicle, do not move your vehicle:

Any more than 500 feet.

Any more that 450 feet.

In an upwind direction.

Any more than safety required.

10 / 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

pump the brake pedal

put the gears in neutral

downshift

11 / 40

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

at a level of 50 and 70 psi

at a normal pressure

at a level of 70 and 90 psi

at half of its normal pressure

12 / 40

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

Any of these are acceptable.

A ul rating of 10 b/c or above.

A ul rating of 5 b/c or above.

A ul rating of 15 abc.

13 / 40

At a railroad crossing, the bus is required to stop at the stop line. If there is no clearly marked stop line, what is the required minimum and maximum stopping distance?

No closer than 15 feet and no further than 50 feet, where you have the best view of the tracks.

No closer than 15 feet and no further than 30 feet, where you have the best view of the tracks.

No closer than 10 feet and no further than 40 feet, where you have the best view of the tracks.

No closer than 10 feet and no further than 60 feet, where you have the best view of the tracks.

14 / 40

Make sure that____when the front trailer supports are up and the trailer is resting on the tractor.

the safety latch is in the open position

there is enough clearance between the lower and upper fifth wheel

the kingpin has been removed

there is enough clearance between the landing gear and the tractor frame

15 / 40

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

Minimum of 10 feet

Minimum of 5 feet

Minimum of 15 feet

Minimum of 2 feet

16 / 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

17 / 40

Which of the following is not a prohibited practice on the bus:

Fueling your bus with riders on board if about to run out of fuel.

Towing a disabled bus with riders aboard when getting off would be a safe option.

Talking with riders while driving.

Refueling in a closed building with riders on board.

18 / 40

You must not allow riders to stand:

Within two feet of an emergency exit.

In front of the standee line.

Within two feet of any window.

Between the wheel wells.

19 / 40

Select the statement that is true in regards to quick steering movements and triple/double trailers:

there are no issues that occur from quick steering

as you perform quick steering movements you should apply pressure to the brake pedal

they flip over due to quick steering movements a lot easier than other vehicles

it is easier to countersteer compared to other vehicles

20 / 40

Air pressure should build___with a dual air system.

from 60 to 100 psi in 45 seconds

from 85 to 100 psi in 45 seconds

from 50 to 80 psi in 60 seconds

from 70 to 125 psi in 60 seconds

21 / 40

When does your vehicle's single brake system need an adjustment?

when the governor stops between 75-90 psi

when the pressure builds from 85 to 100 psi in less than 1 minute

if the pressure builds from 50 to 75 psi in less than 3 minutes

if the compressor cuts out at between 70 and 90 psi

22 / 40

The safety valve is usually set to open at:

75 psi

125 psi

150 psi

225 psi

23 / 40

Select the statement that best describes what the service line is for.

it is controlled by the trailer hand brake and carries air

it is controlled by the foot brake and carries air

all answers listed

it is controlled by the foot brake or trailer hand brake and carries air

24 / 40

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

directly behind the trailer

about 12 degrees to the right

about 12 degrees to the left

directly in front of the trailer

25 / 40

A driver of a tanker should use an escape ramp when _____.

only in ideal conditions

only when it's raining

the vehicle has lost braking power

when the tanks has bulkheads

26 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

In order to observe the danger zones around the bus and look for the students, traffic, and other objects in this area.

In order to clear up blind spots around the bus.

In order to see if small vehicles are driving in the bus blind spots.

In order to observe the danger zones around the bus.

27 / 40

Select the purpose of fanning air brakes:

it decreases the braking power

it cools them down

lower air pressure

it increases the air pressure

28 / 40

Where is compressed air stored?

in the compartment for the engine

in the hose lines

in the storage tank

in the gasoline tank

29 / 40

How can you determine if your vehicle is equipped with ABS?

check if your vehicle was manufactured after March 1, 1998 (they are required to have the panel light)

look for wheel speed sensor wires that are coming from the rear of your brakes

check for yellow abs malfunction lamps on the instrument panel

all of these answers are correct

30 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

long

high

narrow

low

31 / 40

What are the liquid tight separations between compartments inside tanks called?

Bulkheads

Layers

None of the answers listed

Waffles

32 / 40

How much space should there be between the lower and upper fifth wheel?

1 to 2 inches

zero

it is dependent on the load you are carrying

1/4 to 1/2 of an inch

33 / 40

Some hazardous materials may not be loaded together with other hazardous materials. The prohibited combinations are listed in the:

Hazardous materials table.

Segregation and separation chart.

Hazardous waste manifest.

List of hazardous materials and reportable quantities.

34 / 40

Select the load of the trailer that will require the shorter distance to stop.

a 1/3 loaded trailer

a half loaded trailer

an empty trailer

a fully loaded trailer

35 / 40

Signs of distracted drivers include:

individuals driving at a consistent speed above the speed limit

drivers having conversations with passengers

vehicles exiting the roadway

individuals listening to music too loudly

36 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

Yes

Only if you have more than 1,001 pounds of it

Only in populated areas

37 / 40

This item does not need to be checked during the cab check.

The air conditioning

The horn

The defroster/heater

The windshield wipers and fluid levels

38 / 40

What position should the heaviest trailer be in when pulling 3 trailers?

in the middle

in the front

in the back

it makes no difference

39 / 40

While driving at night, which lights should you use as often as you can?

high beams

low beams

emergency flashers

novelty lights

40 / 40

How often should air tanks be drained?

once a day

every 4-5 days

every 7 days

every 6 hours

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