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

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

2 / 40

When approaching a school bus stop, you should:

3 / 40

What gauge on the dashboard indicates electrical system charging rate?

4 / 40

An "A/W" the first column of the hazardous materials table means:

5 / 40

What school bus accidents should be reported?

6 / 40

How often should you check your cargo?

7 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

8 / 40

Select the true statement about what the Air Compressor Governor controls:

9 / 40

Start by___when coupling.

10 / 40

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

11 / 40

Which of the following is NOT an acceptable type of marking for hazardous materials?

12 / 40

What does the drain valve for air tanks remove?

13 / 40

The school bus driver may be the only contact person from school system some parents meet. The percentage of such parents is as high as:

14 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

15 / 40

If you are transporting cargo, you should inspect the cargo and securing devices:

16 / 40

What is most likely to occur when the front wheels begin to skid?

17 / 40

Select the statement that describes smooth bore tanks:

18 / 40

When driving in very hot temperatures, you should:

19 / 40

A tank trailer should never be fully loaded due to:

20 / 40

When transporting explosives you may not park:

21 / 40

An oncoming vehicle keeps its high beams on. You should deal with this hazard by:

22 / 40

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

23 / 40

This item should be firmly attached the to frame, be solid, and clear of objects:

24 / 40

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

25 / 40

What kind of surge can occur in a tank with baffles?

26 / 40

All standing riders must stay:

27 / 40

What is a passive railway crossing?

28 / 40

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

29 / 40

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

30 / 40

Which of the following statements about overhead space is true?

31 / 40

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

32 / 40

Never refuel your bus:

33 / 40

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

34 / 40

Select the true statement about convex ("spot") mirrors.

35 / 40

What is the standee line?

36 / 40

Most states require school bus drivers to take a physical examination:

37 / 40

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

38 / 40

Suspension systems:

39 / 40

There must be a hazardous materials identification number on the ______ and on the ______.

40 / 40

When should you avoid using the parking brake?

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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.

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.