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

You should back up slowly until____when coupling the trailer.

the cargo inside the trailer shifts

the tractor comes in contact with the front of the trailer

the rear wheels are visible in the mirror

the fifth wheel has just touched the trailer

2 / 40

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

To assist the school principal with their report.

To give the mechanic something to do.

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

To check for flat tires.

3 / 40

Which of these statements about signaling is correct?

Signal your intentions early and continuously.

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

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

Signaling is a warning, not a request.

4 / 40

Your rig should be parked on__to uncouple double trailers.

a downgrade

the company's lot

level ground

grass

5 / 40

A driver that hauls hazardous materials must attend training every:

2 years

None of these answers are correct

1 year

3 years

6 / 40

This carries hydraulic fluid or air to the wheel brake assemby.

Brake drums

Brake lines/hoses

Connector rods

Slack pieces

7 / 40

When transporting both hazardous and non hazardous materials, your bills must:

Describe the hazardous materials first.

Have the hazardous materials highlighted.

Any one of the above.

Identify the materials by the letter x or rq in the hm column.

8 / 40

You should check your mirrors while making a lane change:

all answers listed

after you have completed the lane change

after you signal your intent to change lanes

right after you start the lane change

9 / 40

Select the true statement in regards to handing triples and doubles

a sudden movement of the steering wheel may result in the rear trailer tipping over

due to off tracking, a triple bottom rig can come to a stop quicker than a 5 axle semi trailer

none of the answers listed

due to the crack the whip effect, the rear trailer of a 100 foot triple is less likely to tip than a single trailer

10 / 40

How do you make sure the air lines are not crossed and the trailer brakes are working after supplying air to the trailer?

release the tractor brakes

listen for brake sounds as you apply pressure off and on the trailer brakes

lift the brake pedal up

activate the parking brakes

11 / 40

Is it important to look into the back of the fifth wheel to see if the lockpin is locked in?

only at the end of the shift

yes

only every 7 days

12 / 40

What gauge on the dashboard indicates electrical system charging rate?

The air gauge

The coolant pressure gauge

The power gauge

The ammeter/voltmeter

13 / 40

Do empty trucks have the best braking?

yes

yes, but only if the truck is newer than 1998

yes, but only on wet surfaces

14 / 40

What do you need to do to supply air to the air tanks of the second trailer?

open the shut off valve at the back of both trailers

open up the shutt off valves on the rear of the first trailer and close the shut off valve at the back of the second trailer

close the shut off valves at the back of each trailer

none of the answers listed

15 / 40

The shipping papers for hazardous materials can be found:

Any of the above locations.

In a pouch on the driver's door.

In clear view, within reach while driving.

On the driver's seat when out of the vehicle.

16 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

The dock workers

The carrier

The shipper

The driver

17 / 40

Two causes of tire fires are ______.

under-inflated tires and poor retreads

under-inflated tires and duals that touch

hot brakes and under-inflated tires

duals that touch and road debris

18 / 40

To decide which placards you need, if any, what three things do you need to know?

Materials hazard class, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

Materials hazard class, percentage of total volume, and amount of all hazardous materials on your vehicle.

Materials hazard class, location being shipped, and amount of all hazardous materials on your vehicle.

Packing group numbers, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

19 / 40

Select the true statement about speed and stopping distance.

When the road is wet it will double your stopping distance.

Tank surge will decrease your stopping distance.

You need two times the stopping distance when driving at 40 mph compared to 20 mph.

None of these answers are correct.

20 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

the front trailer

the tractor

the back trailer

all are equally likely

21 / 40

The designation RQ identifies the material's:

Reportable quantity

Regulatory quantity

Regulatory quotient

Reference quotient

22 / 40

What are the three hazard classes should NOT be loaded into a trailer that has a heater air conditioner unit?

Class 1 explosives, class 8 corrosives, and division 5 oxidizers.

Class 1 explosives, class 3 flammable liquids, and division 21 flammable gas.

None of these answers are correct.

Class 2 explosives, class 3 flammable solids, and division 21 inhalation hazard.

23 / 40

Select the true statement in regards to unhooking the pintle hook while the converter dolly is still under the trailer.

this is recommended as it is standard procedure

this is recommended because it keeps the trailer from tipping over

this is not recommended because it may result in injury

this is not recommended as it could could cause damage to the pintle hook

24 / 40

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

pull on the slack adjusters after draining the air from the system

pull hard on each slack adjuster while wearing gloves

make sure there is an inch of leeway in each direction for the slack adjuster

pull on the slack adjuster while the parking brakes are on

25 / 40

What are some things you should check on the front of your vehicle when doing the walk-around inspection?

windshield, wipers, mirrors, hood latches

oil, transmission, air compressor, radiator

tires, steering parts, suspension parts, headlights

low beams, high beams, four way flashers, turn signals

26 / 40

Select the true statement in regards to crossing your air lines on a new trailer with spring brakes

you will be unable to realse the trailer brakes

you will be unable to release the tractor brakes

you will have brakes that are not operational

there is no way to know if there is an issue

27 / 40

Carry-on baggage cannot be stored:

Behind the seats.

In the aisles and stairwells.

On the seats.

Under the seat.

28 / 40

Which of the following statements about "Radioactive" labels is true?

Yellow ii indicates the highest level of radioactivity.

Black iii indicates the highest level of radioactivity.

White i indicates the highest level of radioactivity.

Yellow iii indicates the highest level of radioactivity.

29 / 40

The driver's manual advises you to disconnect the steering axle brake to keep the rig straight:

when it is raining

in ideal conditions

never

whever you feel like it

30 / 40

One reason hauling liquids in tank vehciles require special care is:

Because of the extreme weight.

Because of strong winds.

Because of the movement of the liquid.

Because of uneven expansion.

31 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

the length of half a football field

the distance you will travel in 10 seconds time

2 times the length of your vehicle

the distance you can see ahead of you

32 / 40

The air leakage rate for a combination vehicle should not exceed ____psi a minute.

33 / 40

Which of the following statements about downshifting is NOT true?

downshift before climbing a hill

downshift when you get to the bottom of a hill

downshift before entering a curve

downshift before starting down a hill

34 / 40

What is the movement of the liquid called when the tanks are partially filled?

Knocking

Framing

Crashing

Surging

35 / 40

How can you check slack adjusters?

by using a fixed wrench

by pulling hard on each slack adjuster

it is not possible to check manually

by frequently checking the pressure gauge

36 / 40

An emergency escape ramp should be used _____.

any time the truck experiences a significant loss of braking power

only when not carrying a load

only when it is raining

only in ideal conditions

37 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

2 psi in a minute

5 psi in a minute

3 psi in a minute

4 psi in a minute

38 / 40

At the end of each shift you should:

All of these answers are correct.

Report any defects.

Inspect your bus.

Report any damage.

39 / 40

When using turn signals, which of the following should be avoided?

signal before you exit

signal when you are merging into traffic

signal when you want to change lanes

signal just before you start to make a turn

40 / 40

What is the main difference between a portable tank and a cargo tank?

All of these answers are correct.

Cargo tanks are permanently attached, portable tanks are temporarily attached.

Portable tanks must additionally show the owner or lessee's name on them.

Cargo tanks are filled while on the vehicle, portable tanks are filled while off the vehicle.

Your score is

The average score is 0%

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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