minnesota
CDL Practice Test

As you prepare to earn your CDL in the state of Minnesota you’ll need to study for the written portion of the Minnesota CDL test. This site offers MN CDL practice tests to help you on your journey. Use this site as a study guide as you prepare to take the CDL Test in Minnesota. Questions on these practice tests cover topics from the MN CDL manual. You can take these practice tests as many times as you need to and the tests are free. Good luck as you look to obtain your Minnesota CDL. 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

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

Class 3—flammable liquids

Class 7—radioactive materials

Class 4—live chickens

Class 1—explosives

2 / 40

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

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

it is controlled by the trailer hand brake and carries air

all answers listed

it is controlled by the foot brake and carries air

3 / 40

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

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

All of these answers are necessary qualifications.

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

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

4 / 40

What might happen if you swing wide to the left before you turn right?

someone might try to pass you on your left

someone might try to pass you on your right

all of these answers are correct

you might damage your leaf springs

5 / 40

To transport cargo safely, which of these are you NOT responsible for?

recognizing possible overloads

making sure that cargo is properly secured

ensuring the freshness of sealed cargo

inspecting the cargo

6 / 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, 21, and 3

Classes 1, 3, and 6

Classes 1, 3, and 4

Classes 1, 4, and 51

7 / 40

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

Air pressure gauge

Oil pressure gauge

Voltmeter gauge

Coolant pressure gauge

8 / 40

How should you inspect a converter dolly?

as if it is an axle with a fifth wheel

as if it is a trailer

as if it is an engine

as if it is cargo

9 / 40

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

dull section

apex

tip

shank

10 / 40

Under which two special conditions should you downshift?

before starting down a hill and before entering a curve

before entering a curve and before going up a hill

if there is an accident and in sudden heavy rain

before starting down a hill and before going up a hill

11 / 40

How should the pintle hook be when backing a dolly under the second trailer?

removed from the dolly

in a halfway open position

in the unlatched position

in the latched position

12 / 40

To maintain alertness during the trip, drivers should:

schedule trips during the daytime hours

all of these answers are correct

get 8-9 hours of sleep

avoid medications that cause drowsiness

13 / 40

To avoid rollover when going through a curve, the best thing to do is:

Drive at a speed higher than the posted speed limit.

Ride the brakes through the curve.

Drive at a speed below the posted speed limit.

Pump the brakes through the curve.

14 / 40

What are spring brakes?

they do not function when the psi falls below 30 psi

they are brakes that automatically come on for a truck or trailer when the psi drops too low

all of these answers are correct

they are powerful springs that hold back air pressure when driving

15 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

By another bus with its four-way flashers on.

By a 27,000 lbs gvwr or larger tow truck.

If getting off the bus would be more risky for the riders.

If the distance is less than 500 yards.

16 / 40

What is the purpose of the supply pressure gauge?

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

to inform you of how much air is in the tank

all of these answers are correct

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

17 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

Kingpin

Locking pins

Pintle hook

Rock jaw

18 / 40

Select the action that is not recommended when driving on slippery roads:

none of the answers listed

keep other drivers out of your side space

use a light pressure with the the brake and accelerator pedals

use a speed retarder or engine brake

19 / 40

What will happen right away should the service air line come apart but the emergency line is intact while driving a combination vehicle?

the trailer's air tank will leak through the one line

the emergency tractor brakes will activate

you will come to a complete stop

nothing will occur until you try to use the brakes

20 / 40

Which of these statements about signaling is correct?

Signal your intentions early and continuously.

Signaling is a warning, not a request.

Leave your signal on long after you've changed lanes.

Signal to others that it is safe to pass your bus.

21 / 40

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

narrow

low

high

long

22 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

A deduction of 15 points.

None of the answers listed.

The driver must restart the pre-trip from the beginning.

An automatic failure of the vehicle inspection test.

23 / 40

Overhead inside mirror is used to:

See all of the students.

Monitor traffic that approaches and enters the blind spot area.

See the blind spot immediately behind the bus.

See the area where students exit the bus.

24 / 40

A safe haven is:

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

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

25 / 40

Select the true statement in regards to a converter dolly:

none of the answers listed

it is a coupling device with one or two axles and a fifth wheel with which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a coupling device with only two axles and a sixth wheel to which a semitrailer can be coupled to the rear of a tractor-trailer combination forming a double bottom rig

it is a connecting device consisting of one axle which disconnects a semitrailer combination vehicle converting it into two separate trailers

26 / 40

Which of the following statements about bus evacuation is true?

If time allows, notify the police.

If time allows, notify the dispatcher about evacuation location, conditions, and type of assistance needed.

If time allows, walk through the bus and close all windows.

If time allows, backup to the stop before evacuating the bus.

27 / 40

After the initial drop, the maximum leakage rates per minute is:

3 psi for combination vehicle and 1 psi for single vehicle

4 psi for a combination vehicle and 3 psi for a single vehicle

6 psi for a combination vehicle and 5 psi for single vehicle

10 psi for combination vehicle and 5 psi for single vehicle

28 / 40

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

Raised and that the handle is hanging free.

Raised and that the handle is secured.

Down and that the handle is hanging free.

Down and that the handle is secured.

29 / 40

Select the purpose of fanning air brakes:

it increases the air pressure

lower air pressure

it decreases the braking power

it cools them down

30 / 40

The front trailer supports should be____before driving away.

3 turns down from the top and the crank handle secured in its bracket

raised 1/2 way with the crank handle secured in its bracket

raised fully and the crank handle secured in its bracket

raised 1/3 of the way with the crank handle secured in its bracket

31 / 40

Off-tracking happens when going around a corner and:

the rear part of the trailer goes into the shoulder

the rear wheels follow the front wheels in a straight path

the front part of the trailer pulls to the right

the rear wheels follow a different pathway than that of the front wheels

32 / 40

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

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

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

33 / 40

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

Any of these are acceptable.

A ul rating of 5 b/c or above.

A ul rating of 10 b/c or above.

A ul rating of 15 abc.

34 / 40

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

a half loaded trailer

an empty trailer

a fully loaded trailer

a 1/3 loaded trailer

35 / 40

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

is between 40 and 60 psi

is at half of the maximum pressure

at a normal pressure

is between 50 and 80 psi

36 / 40

How do you test your service brakes?

release the air pressure and activate the parking brake

after releasing the parking brake, move forward slowly and apply pressure to the brake pedal

apply pressure to the brake pedal when moving at highway speeds

pull over and activate the parking brake

37 / 40

Check that the parking brake will hold by____when the parking brake is engaged and the trailer brakes released if not a combination vehicle.

all answers listed

shift up into a high gear and let off the clutch quickly

while in neutral increase the rpm to 1500

shifting down to a low gear and trying to pull forward gently

38 / 40

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

To check for flat tires.

To assist the school principal with their report.

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

To give the mechanic something to do.

39 / 40

How do you make sure the trailer height is correct before coupling?

visually check that the lead trailer is higher than the fifth wheel so that the trailer will lower when the dolly is pushed under it

visually check that the rear trailer is lower than the fifth wheel so that the trailer raises slightly when the dolly is pushed under it

visually check that they are level height wise

you do not need to do a visual check

40 / 40

Select the true statement in regards to your brake function when your ABS fails

you will have no control over your truck as the brakes will not be functioning

the abs will need to be repaired but the brakes will function normally

you will need to pull over immediately

there is a huge fire risk

Your score is

The average score is 0%

5/5 - (1 vote)

CDL Category Practice Tests

CDL Practice Test

How To Get A minnesota Commercial Drivers License

Minnesota has set specific requirements of a CDL license for the operation of specific vehicles. The first is a combination vehicle that exceeds a gross weight of 26,000 pounds. Any single vehicle that exceeds the 26,000 pounds also requires a CDL. Vehicles intended to transport more than 15 passengers, including the driver, fall under the commercial driver’s license requirement. Any vehicle that requires hazardous material placards must be driven by a CDL driver. Lastly, any school bus driver must have their CDL. Applicants may file for a Class A, B, or C commercial driver’s license. Each class has its own restricts for the vehicle size and type that may be legally driven.All applicants must be 18 years of age or older to apply for a commercial driver’s license. A Hazardous Materials Endorsement may only be obtained by those who are 21 years of age or older. All applicants must possess a DOT medical card or submit a medical examiner certificate upon applying for their commercial driver’s license.

Driving Record And Disqualifications

Any conviction of driving an impaired vehicle within the past 24 months.
Current license is suspended, denied, canceled, or revoked.
Possessing a driver’s license from another state.

All CDL applicants must pass one or more knowledge tests and skills test to be eligible to receive their CDL.

Endorsements
H – Hazardous Materials
N – Tank Vehicle
P – Passenger Transport
S – School Bus
T – Doubles / Triples
X – Tanker and Hazardous Materials

Hit the Open Road

minnesota CDL License Test Tips

All applicants will be required to take one or more knowledge tests depending on the class and the endorsements they wish to obtain. Knowledge tests are given on paper and on the computer. All Class applicants must complete a 50 question knowledge test, with Class A applicants also required to complete 20 questions about combination vehicles. Endorsements require their own specific tests. For Passenger, Doubles/ Triples, and Tank Vehicle Endorsements applicants will be given a 20 question test. For School Bus Endorsement and Air Brake Restriction Removal a 25 question test will be given. A Hazardous Materials Endorsement requires a 30 question test. Test scores of 80 percent and higher are considered passed.

A skills test is required of all applicants to be taken in the type of vehicle in which they are seeking certification. The skills test is given in three different phases. These include the pre-trip inspection, basic control skills, and the road test. Applicants must pass all three phases of the skills test to receive their CDL. Additional skills tests are required for specific endorsements. These include Passenger and School Bus Endorsements as well as the Air Brake Restriction Removal.

Additional Information

Information on the Minnesota Department of Public Safety

The Minnesota Department of Public Safety provides administers CDL license requirements in Minnesota. To get more information contact them via:

Website: https://dps.mn.gov/divisions/dvs/Pages/drivers-license-information.aspx#ClassA

Phone: 651.297.5029

Additional Minnesota CDL Helpful Links

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

minnesota CDL Practice Test

CDL Category Practice Tests

CDL Practice Test

How To Get A minnesota Commercial Drivers License

Hit the Open Road

minnesota CDL License Test Tips

Additional Information

Information on the Minnesota Department of Public Safety

Additional Minnesota CDL Helpful Links

minnesota
CDL Practice Test