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

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

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 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 rear trailer tends to swing out. The force of the rear trailer becomes amplified, which will cause it to roll over (rearward amplification).

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.

2 / 40

Mirrors with a convex surface or "spot" mirrors _____.

are illegal in most states

make things look closer and larger than they actually are

make things look farther away and smaller than they actually are

they show a larger area than flat mirrors so do not need to be checked as often

3 / 40

Select the definition for outage:

It is the process of liquid expansion as it becomes warm.

It is how much power is lost to the hydraulics.

It is loss of power to the headlights.

It is the liquid that must be drained off to meet legal carry limit.

4 / 40

Urban mass transit coaches may have a brake and accelerator interlock system. Which of the following statements is true?

The interlock applies the brakes and holds the throttle in idle position when the rear door is open.

Do not use this safety feature in place of the parking brake.

The interlock releases when you close the rear door.

All of these answers are correct.

5 / 40

Forward and back surge is powerful in this type of tanker.

Smooth bore

Hard stroke

Bulktruck

Waffle

6 / 40

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

the braking prower increases when the brakes are hot

braking power can only be tested by licensed mechanics

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

it depends on the adjustment of the service brakes

7 / 40

You should keep a minimum of ____between another vehicle and the double trailer with 100 ft truck driving at 30 mph.

10 seconds

8 seconds

15 seconds

13 seconds

8 / 40

You should place the starter switch key into your pocket while you are performing the pre-trip inspection because:

it could damage the starting mechanism

someone could start and move the truck

all of these answers are correct

someone could steal the truck

9 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

about 1 block for city driving

about 5 car lengths on the highway

about 1/4 mile for open highway driving

about 12-15 seconds

10 / 40

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

Voltmeter gauge

Oil pressure gauge

Coolant pressure gauge

Air pressure gauge

11 / 40

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

In an upwind direction.

Any more than safety required.

Any more than 500 feet.

Any more that 450 feet.

12 / 40

Select why you should not use the trailer hand valve while driving:

there is a possibility it will make the trailer skid

it will cause the tractor to shake

you should only ever use the parking brake

it does not work as well as the foot brake does

13 / 40

Which of the following statements about the bus interior is false?

The seats must be safe for riders all seats must be securely fastened to the bus.

If there is a red emergency door light, it must work.

If you use your outside lights, you don't need to turn on red emergency door light.

Never drive with an open emergency exit door or window.

14 / 40

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

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

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

3 psi for combination vehicle and 1 psi for single vehicle

10 psi for combination vehicle and 5 psi for single vehicle

15 / 40

Is this statement true or false: You do not need to use the parking brake if are leaving your vehicle for a short amount of time.

only when the vehicle has over 25,000 miles on it

true

only when the vehicle has over 60,000 miles on it

false

16 / 40

You can be sure air is supplied to the second trailer by:

going to the rear of the second trailer and open the emergency line shut off

while driving at 10 mph apply the hand valve you should stop at the same in the same distance as a single trailer driving at 5 mph

you should get out and listen for air flowing through the lines

watch the air gauge for a drop of 30 psi

17 / 40

How do you know when your brakes are fading?

to control your speed on a downgrade you have to push harder on the brake pedal

to control your speed on a downgrade you have to apply less pressure to the break pedal

the brake pedal flops to the cabin floor

your speed increases when pressure is removed from the brake pedal

18 / 40

The compressor is connected to the engine via _____?

stag gears

r-belt

v-belt or gears

lines

19 / 40

When is it acceptable for non-hazardous materials to be described by hazard class words or identification numbers?

For hazards not described in the hazmat manual

Never

During an emergency

Always

20 / 40

With the controlled braking method, you _____?

apply the brakes all the way until the wheels lock up, release the brakes and apply them again when the wheels start to roll again

repeatedly tap the brakes as fast as you can

lightly apply braking pressure

apply the brakes as hard as you can without locking the wheels

21 / 40

When you have a major leak in the service line and you apply pressure to the brakes, the service air pressure will escape and:

the hand valve will stop functioning

the trailer emergency brakes will kick on

the tractor spring brakes will kick on

the trailer tank pressure will be gone

22 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

slam down the brake pedal and keep pressure on it

none of the answers listed

do stab or controlled braking

use the trailer brakes only

23 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

the fuel to air ratio

percentage of alcohol

percentage of water

weight distribution

24 / 40

School buses are one of the safest means of transportation. What two key factors contribute to this impressive safety record?

Bus drivers and driver training.

Vehicles and drivers.

Vehicles and road conditions.

School district policies and police involvement.

25 / 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?

Poison 23 and flammable gas 21.

Just dangerous placards are required.

None, you cannot load these materials together.

Poison 23 and dangerous.

26 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

Exhaust system

Windshield fluid line

Fuel tank

Air coolant system

27 / 40

Select what you should not do when coupling the glad hands.

make sure to match the colors or check the tags before connecting

press the seals together at a 90 degree angle

cross the air supply lines to test for leaks

clean the couplers before connecting them

28 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

within 10 feet of the front or rear corners

on the other side of a divided highway

about 100 feet in front of your vehicle

about 100 feet behind your vehicle

29 / 40

You downshift automatic transmissions ______.

none of these answers are correct

before going down a hill

at the bottom of a hill

half way down a hill

30 / 40

Which two special conditions indicate that you should downshift?

starting down a hill and finishing a curve

starting up a hill and finishing a curve

starting up a hill and entering a curve

starting down a hill and entering a curve

31 / 40

How often should you check the tires on a placarded trailer that has dual tires?

Each time you stop.

Once every 100 miles.

Once every three hours.

Start of each day and every time you stop.

32 / 40

You should follow the posted speed limits for curves and be aware of:

All answers listed.

A rollover may occur even when driving at the posted speed limit.

The posted speed limit may be too high for safety.

The higher center of gravity on a tank truck.

33 / 40

You should follow behind other vehicles ______when traveling under 40 mph.

at a distance of 1 second for every 15 feet of your vehicle length

at a distance of 1 second for every 5 feet of your vehicle length

at a distance of 1 seconds for every 10 feet of your vehicle length

as close as possible so other drivers won't cut in front of you

34 / 40

What are you checking when looking at the lubrication level on a dipstick?

The power steering fluid level

The oil level

The horn fluid level

The windshield wiper fluid level

35 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle with a gross weight over 26,001 lbs

a vehicle transporting 16 or more passengers

all of these answers are correct

a vehicle transporting hazardous materials

36 / 40

Select when you should use the hand valve to park a combination vehicle.

when parking on a downgrade

when parking at a loading dock

when parking in a commercial lot

never

37 / 40

Check to ensure that____when inspecting the coupling.

the electrical cable is unplugged

there is no slack at all in the air lines

the landing gear handle is free to hang down

there is minimal slack in the air lines

38 / 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

39 / 40

The most stable tanker shape is:

Square

Cylindrical

Round

Elliptical

40 / 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:

0.65

0.85

0.5

0.72

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