Michigan
CDL Practice Test

The Michigan CDL practice tests below offer practice test questions in all the different topic areas you’ll see on the Michigan CDL test. The tests are free and can be taken as often as you’d like to help you in your preparation for earning a Michigan commercial driver license. 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 Quiz" button below to begin.

1 / 40

What action should you take before driving while drowsy?

pull off the road and get some sleep

drink energy drinks

drink a cup of coffee

open your vehicle windows for some fresh air

2 / 40

The interlock system for the brake and accelerator on a transit coach may be used:

All of these answers are correct.

As a safety feature when the exit door is open.

To replace the rear door emergency buzzer.

To replace the parking brake.

3 / 40

You should never brake and should rely only steering inputs to avoid a crash while driving a tanker truck.

True

False

True, but only in ideal conditions

True, but only on downgrades

4 / 40

What is a king pin?

it is a pin that locks the air brake lines together

it is a pin that holds the wheel on to the axles

it is a pin that locks the trailer to the tractor on the fifth wheel

it is a pin that a driver receives for being a safe driver

5 / 40

The compressor is connected to the engine via _____?

stag gears

lines

v-belt or gears

r-belt

6 / 40

Remember to_____when steering to avoid a crash while driving doubles.

have both hands on the steering wheel

keep your foot off the brake while turning

all answers listed

be prepared to counter-steer

7 / 40

Buses may NOT have recapped or regrooved tires:

Anywhere except on the front wheels.

On front wheels.

On the outside rear wheels.

When it's been raining.

8 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

true

false

trailers never tip

there is an equal chance for trailers to tip

9 / 40

Which of the following is a recommended procedure when unloading the students?

Put the transmission in neutral gear and put on the brakes.

Let the students begin moving to the front of the bus before it's fully stopped to maximize efficiency.

Tell students to remain seated until they are told to exit.

Position yourself outside of the bus in front of crossover mirror to supervise unloading.

10 / 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

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

lightly apply braking pressure

repeatedly tap the brakes as fast as you can

11 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

the vehicle is manufactured after 2005

the vehicle is manufactured after 1998

the vehicle is manufactured after 2001

the vehicle is manufactured after 1990

12 / 40

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

the distance you will travel in 10 seconds time

the length of half a football field

2 times the length of your vehicle

the distance you can see ahead of you

13 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

look for vehicles coming into your lane

determine if there are any upcoming traffic lights that might require you to stop

determine if there are any hills coming up

look for brake lights from slowing vehicles

14 / 40

What action should you take if there is no phone available and you discover your hazardous materials shipment leaking at a rest stop?

Leave your truck parked with emergency lights on and walk for help.

Keep driving, slowly and cautiously, until you reach a phone.

Send someone for help with all the necessary information.

Keep driving for help as quickly as possible.

15 / 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 500 feet

At least 300 feet

At least 600 feet

At least 400 feet

16 / 40

The object that doesn't get checked at the side of the trailer is the:

The locking pins/tandem release arm

Electrical/air connections

The frame

The landing gear

17 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

about 1/4 mile

about the length of a football field or 100 yards

about two truck lengths

about two car lengths

18 / 40

Which of the following is NOT something you need to know in order to determine if you need to use placards?

The substance or material's hazard class.

The amount of all hazardous materials of all classes in your vehicle.

The amount of a substance or material being shipped.

The manufacturing date for the materials.

19 / 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.

20 / 40

Select the true statement in regards to a converter dolly:

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

none of the answers listed

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

21 / 40

What method should be used to test that the air is flowing to all the trailers?

check the pressure indicator dial on the final trailer

listen for air flow after opening the shutoff valves at the rear of the last trailer

pump the brakes with the windows down

only a certified mechanic can check for this

22 / 40

What should you do if the low air pressure warning comes on for only one system in a truck or bus that has a dual air brake system?

decrease your speed and head to the closest mechanic

continue on with your trip

decrease your speed and test the other system

stop and safely park your vehicle only continue once the issue has been resolved

23 / 40

The minimum tire tread depth for front tires is:

1/32-inch

4/32-inch

1/2-inch

3/8-inch

24 / 40

What is the value of the overhead rear-view mirror inside of the bus?

To monitor passenger activity.

To monitor the driver's appearance.

To check blind spots.

To provide visibility directly in the back of the bus.

25 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle transporting hazardous materials

a vehicle transporting 16 or more passengers

a vehicle with a gross weight over 26,001 lbs

all of these answers are correct

26 / 40

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

whever you feel like it

in ideal conditions

when it is raining

never

27 / 40

Make sure that_____before you back under a trailer.

the air supply knob has been pushed it

the trailer brakes have been locked

the air supply knob has been pulled out

the air brakes are in an off position

28 / 40

Select the true statement about empty trucks:

they have poor traction due to wheel lockup and bouncing

empty trailers are easier to stop because there is not cargo shifting

they have a smaller stopping distance than full trailers

empty trucks stop in the same distance as a fully loaded truck

29 / 40

Which trailer is most likely to turn over when you make a sudden turn while pulling doubles?

the front trailer is twice as likely

the rear trailer is twice as likely

trailers will never turn over

there is an even chance for either trailer

30 / 40

How do you check the connection after locking the kingpin into the fifth wheel?

pull the tractor at a sharp right to release the trailer brakes

pull forward 25 feet, turn to the right, and then to the left

pull forward 25 feet, turn to the left, and then to the right

pull the tractor ahead gently with the trailer brakes locked down

31 / 40

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

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

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

32 / 40

Hazardous materials (that are not forbidden) carried on a bus must be:

Carried in a metal box

Stored in the passenger compartment

All of these answers are correct

Labeled

33 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

gather the contact information of all the drivers involved

care for the injured

protect the area

notify authorities

34 / 40

What is the safest way to stop unruly behavior on the bus?

Pull off the road in a safe location, secure the bus, stand up, and tell the students what behavior you expect of them.

Keep checking the rear view mirror so you can see what happened and report to the principal.

Have the unruly students move to the front of the bus.

Yell loudly for the students to sit down and behave themselves.

35 / 40

In what position should the shut off valves on a the rear of the front trailer be in on a set of double trailers?

in a halfway open position

in an open position

in a 1/3 way open position

in a closed position

36 / 40

How do you test the trailer service brakes?

release air to the spring brakes

test the brakes out while driving at 5 mph

apply pressure to the brake pedal

apply the hand control and check to see if you feel the trailer brakes come on

37 / 40

The best way to go into a curve is to decrease your speed going into the curve and then ____going through it.

none of the answers listed

slightly accelerate

shift down 2 gears

ride the brake

38 / 40

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

at half of its normal pressure

at a normal pressure

at a level of 70 and 90 psi

at a level of 50 and 70 psi

39 / 40

Select the true statement in regards to managing the space to the sides:

you should try to avoid driving next to others when possible

high wind gusts will not cause any issues for doubles or triples

you should drive down the center of both lanes over the pavement markings

you should always keep your vehicle to the right side of the lane

40 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

to alert drivers behind you that there are hazards ahead

to signal to tailgaters that they are too close to your vehicle

to warn vehicles approaching you from behind that you are driving slowly

to warn drivers behind you when you need to slow down

Your score is

The average score is 0%

5/5 - (1 vote)

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How To Get A michigan Commercial Drivers License

Applicants must be of the legal age of 18 or older. Those between the ages of 18 and 21 are only permitted to drive a commercial vehicle within the state of Michigan. Those age 21 and older may drive a commercial vehicle across state borders. Only those aged 21 and older may apply for their hazardous materials endorsement. All applicants must possess a DOT Medical Card.

An applicant’s driving record will be considered when applying for a CDL license. There are specific items in which a driver will be disqualified for a commercial driver’s license.

These include:

Any suspension/revocation 36 months before submitting an application.
Any six-point violation or conviction of operating a motor vehicle impaired 24 months prior to submitting an application.
Any current denial, cancellation, suspension, or revocation of driver’s license.
Possessing multiple licenses from other states.
Not meeting BFS-103 CDL Certifications.

Michigan requires all CDL applicants to complete both a knowledge test and a skills test. Michigan offers the following CDL license endorsements:

S – School Bus
T – Double Trailer
P – Passenger
N – Tank Vehicles
H – Hazardous Materials

Hit the Open Road

michigan CDL License Test Tips

The knowledge tests are presented in written form for Class A, B, and C applicants. All classes are required to take a 50 question assessment. Those applying for a Class A CDL will need to complete an additional 20 questions about combination vehicles.

Applicants seeking to drive vehicles with air brakes must complete a 25 question air brake assessment. Those seeking any endorsement other than hazardous materials must complete a 20 question assessment that is endorsement specific. Those applying for the hazardous materials endorsement must complete a 30 question knowledge test. All applicants must receive a score of 80 percent or higher on each test to pass.

A skills test is required for all CDL applicants regardless of Class. The School Bus and Passenger Endorsements require a skills test as well. All applicants applying for Air Brakes Certification must use a vehicle that is equipped with air brakes for their skills test. The CDL skills test consists of a vehicle inspection test, basic control skills test, and a driving test. All three test sections must be passed for CDL approval. Failure in any skills test area automatically fails the applicant.

Additional Information

CDL Testing by the Michigan Secretary of State

The Michigan Secretary of State provides administers CDL license requirements in Michigan. To get more information contact them via:

Website: https://www.michigan.gov/sos/0,4670,7-127-1627_8669_53324---,00.html

Phone: 888.767.6424

Additional Michigan CDL Helpful Links

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

Michigan CDL Practice Test