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

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

the rig will slide sideways but stay in a straight line

there will be a trailer jackknife

no matter how you turn the steering wheel, the rig will continue in a straight line

nothing will occur

2 / 40

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

Surging

Crashing

Framing

Knocking

3 / 40

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

use a light pressure with the the brake and accelerator pedals

keep other drivers out of your side space

none of the answers listed

use a speed retarder or engine brake

4 / 40

Select the true statement in regards to handing triples and doubles

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

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

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

none of the answers listed

5 / 40

You may use DANGEROUS placards instead of separate placards for each Table 2 hazard class when:

You have 1,001 pounds or more of two or more table 2 hazard classes, requiring different placards.

Both of these conditions must be met.

The correct answer is not listed.

You have not loaded 2,205 pounds or more of any table 2 hazard class material at any one place (you must use the specific placard for this material).

6 / 40

Select the true statement about dual air brake systems.

all of these answers are correct

there is a primary system and a secondary system

one system controls the front axle and the other controls the rear axle

there is a single set of brake controls

7 / 40

Make sure that_____before you back under a trailer.

the air supply knob has been pulled out

the trailer brakes have been locked

the air brakes are in an off position

the air supply knob has been pushed it

8 / 40

Select the true statement in regards to the braking power of spring brakes.

it will not be affect by the condition of the service brakes

it depends on the adjustment of the service brakes

the braking prower increases when the brakes are hot

braking power can only be tested by licensed mechanics

9 / 40

Air pressure should build___with a dual air system.

from 70 to 125 psi in 60 seconds

from 60 to 100 psi in 45 seconds

from 50 to 80 psi in 60 seconds

from 85 to 100 psi in 45 seconds

10 / 40

A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

Class 6 poisons

Class 3 flammable liquids

Class 1 explosives

Class 7 radioactive materials

11 / 40

You should check that the _____are secure, caps are on tight, and is not leaking.

fuel tanks

cb radio

none of the answers listed

coolant system

12 / 40

Where are shut-off valves located?

either at the front or the back of the trailer

at the front of the trailer

at the front and back of the trailer

at the back of the trailer

13 / 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 15 abc.

A ul rating of 5 b/c or above.

14 / 40

What gauge on the dashboard indicates electrical system charging rate?

The power gauge

The air gauge

The ammeter/voltmeter

The coolant pressure gauge

15 / 40

If the hazardous materials are classified as FORBIDDEN you should:

Refuse the load.

Take special caution in transporting the material.

Place the materials in the front of the trailer.

Remove the placards from the trailer.

16 / 40

Select the statement that best explains the "crack-the-whip" effect.

it is when the trailer is half full with the cargo loaded in the front half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the tractor tends to rock and sway. The velocity of the rearmost trailer forces the tractor to roll over before the trailer.

it is when the trailer is half full with the cargo loaded in the rear half of the trailer. When you make a sudden movement of your steering wheel the cargo will forcefully slide towards the back of the trailer which will force the trailer to roll over.

it is when you make a sudden movement of the steering wheel or a quick lane change and the rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

17 / 40

What should you check for when inspecting a converter dolly?

that the spare tire is secured if there is one

that the safety chains are secured to the trailer

that the converter dolly air tank drain valve is in the closed position

all answers listed

18 / 40

A safe haven is:

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

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

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

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

19 / 40

Air tanks need to be drained:

to keep the tanks cold when not in use

to keep the tanks warm when not in use

air tanks should absolutely never be drained

to prevent water and oil from building up in the tank

20 / 40

It is good practice to_____when uncoupling.

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

have the glad hands coupled to the dummy couplers

all answers are appropriate

have the glad hands coupled together

21 / 40

Why should you use chocks when parking a trailer without spring brakes?

to prevent someone from stealing the vehicle

to prevent a runaway trailer

the trailer wheels are free to turn as there will be no service brakes should the air supply in the trailer air tank leak

the trailer wheels are free to turn as there will be no emergency brakes should the air supply in the trailer air tank leak

22 / 40

Select the true statement in regards to an application pressure gauge:

when accelerating it releases air

it prevents the brakes from failing

it shows how much air pressure you are applying to the brakes

it is connected to the generator

23 / 40

A driver that hauls hazardous materials must attend training every:

1 year

3 years

2 years

None of these answers are correct

24 / 40

This gauge will indicate if the generator or alternator is charging:

Voltmeter/ammeter

Gas tank

Coolant

Oil pressure

25 / 40

What is a passive railway crossing?

The type of crossing, which does not have any type of traffic control device.

The type of crossing with no cross buck sign.

The type of crossing on which the driver does not have to stop.

The type of crossing where you can pass the tracks without stopping.

26 / 40

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

With any window open.

At any time.

In a closed building.

Unless on a scenic tour bus.

27 / 40

What is the earliest way to notice a trailer skid?

you can see it in your mirrors

you can feel a jerk in the back of the tractor

you can feel it pulling your steering wheel

you can hear the tires squealing

28 / 40

It is very important that you never smoke around which hazard classes?

It is ok to smoke anywhere.

Explosives, flammable gas, oxidizers, flammable solids, flammable liquids.

All hazard classes.

Corrosive, radioactive, dangerous, slippery when wet, inhalation.

29 / 40

Animals and human foodstuffs should not be loaded in the same vehicle with?

Poisons

Explosives

Flammable gases

Flammable liquids

30 / 40

Wet brakes can cause _____.

lack of braking power

brakes to apply unevenly

all of these answers are correct

pulling to one side or the other

31 / 40

When stopped on a divided highway where should your reflectors be placed?

20 feet, 150 feet, and 300 feet toward the approaching traffic

30 feet, 100 feet, and 150 feet toward the approaching traffic

10 feet, 100 feet, and 200 feet toward the approaching traffic

15 feet, 75 feet, and 150 feet toward the approaching traffic

32 / 40

You are checking the_______when looking at the dipstick to see if the lubrication is at the safe operating range or above the refill line.

washer fluid level

oil level

coolant level

battery fluid level

33 / 40

In safe driving, what does communicating mean?

all of these answers are correct

letting others know you are there by using turn signals, four way flashers, and horn

using a cb radio to let others know your intentions

using hand signals

34 / 40

When driving with multiple trailers, which one should be right behind the tractor?

the trailer with the heaviest load

the trailers shortest in length

the trailer with the smallest road

the trailer longest in length

35 / 40

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

check for yellow abs malfunction lamps on the instrument panel

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

all of these answers are correct

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

36 / 40

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

10 or more persons, including the driver.

15 or more persons, including the driver.

20 or more persons, excluding the driver.

16 or more persons, including the driver.

37 / 40

If your bus is equipped with an emergency exit door, it must:

All of these answers are correct.

Be secured when the bus is being driven.

Not have any signs, stickers, or markings near it.

Always have a red door light turned on.

38 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

39 / 40

How far away are you required to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?

At least 300 feet

At least 400 feet

At least 500 feet

At least 600 feet

40 / 40

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

100 psi

125 psi

225 psi

175 psi

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