maine
CDL Practice Test

Welcome to the Maine CDL practice test site. Questions on these practice tests are designed to mirror those that are found on the Maine CDL test. These tests are complimentary and you may take them as many times as you would like. 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

If you work for an interstate carrier:

If there are no defects, no report is necessary.

Only fill out report for buses with defects.

None of these answers are correct.

You must complete a written inspection report for each bus driven.

2 / 40

Select the true statement about converter dollies:

they usually do not have spring brakes

because of their small size they have little braking power

they typically require a glad hand converter

all answers listed

3 / 40

When driving in very hot temperatures, you should:

all of these answers are correct

check your tires every 2 hours or every 100 miles

insure that you have enough antifreeze in the system

let your tires cool down (remain stopped) if they are too hot to touch

4 / 40

Select the statement that best describes what the trailer air supply control does:

when pushed in it supplies the tractor with air and when pulled out it supplies the trailer with air

when pulled out it supplies the trailer with air and when pushed in it shuts off the air and puts on the trailer emergency brakes

when pushed in it supplies the trailer with air and when you pull it out it shuts off the air supply and puts on the trailer emergency brakes

when pushed it it supplies the trailer with air and when pulled out it supplies the tractor with air

5 / 40

What is NOT one of the four skill areas that operating a commercial vehicle requires?

safely backing

accelerating

steering

first aid certification

6 / 40

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

during every driving brake on the trip

before the trip, within 50 miles after beginning the trip, and at least every 150 miles or 3 hours

before the trip

within the first 50 miles of driving

7 / 40

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

about two truck lengths

about 1/4 mile

about the length of a football field or 100 yards

about two car lengths

8 / 40

You should make sure the_____before backing under a trailer.

trailer brakes are locked down

landing gear is fully raised

air brakes have been shut off

tractor shut off valve is normal

9 / 40

To avoid rollover when going through a curve, the best thing to do is:

Drive at a speed higher than the posted speed limit.

Pump the brakes through the curve.

Drive at a speed below the posted speed limit.

Ride the brakes through the curve.

10 / 40

Which of the following hazard classes utilizes a transport index in order to determine how much of it can be loaded on a single vehicle for transport?

Class 1—explosives

Class 4—live chickens

Class 7—radioactive materials

Class 3—flammable liquids

11 / 40

Which of the following about the front tires on a commercial bus is true?

Must not be recapped, but can be regrooved.

Can be recapped, but never regrooved.

Can be regrooved or recapped as long as they have 4/32 tread depth.

Must not have recapped or regrooved tires.

12 / 40

At a railroad crossing, the bus is required to stop at the stop line. If there is no clearly marked stop line, what is the required minimum and maximum stopping distance?

No closer than 10 feet and no further than 60 feet, where you have the best view of the tracks.

No closer than 10 feet and no further than 40 feet, where you have the best view of the tracks.

No closer than 15 feet and no further than 30 feet, where you have the best view of the tracks.

No closer than 15 feet and no further than 50 feet, where you have the best view of the tracks.

13 / 40

The best way to test the low air pressure warning signal is to:

manually release the air out of your brakes to see if the signal activates

apply pressure on and off the brakes while the engine is running

apply pressure on and off the brake pedal with the engine off to drop the air pressure to below 60 psi

apply pressure on and off the brake pedal until the air pressure drops below 20 psi

14 / 40

At what pressure is the safety valve in the air compressor tank set to open?

100 psi

150 psi

225 psi

125 psi

15 / 40

Select the factor that has no effect on how much liquid you can carry:

The legal amount of weight you can carry of any particular liquid.

The liquid's weight.

How much the liquid will expand in transport.

The density of the liquid.

16 / 40

It takes special care to drive tankers with liquid in them because:

The high center of gravity of the load.

The low center of gravity of the load.

The movement of the liquid even when the truck is stopped.

The baffles create odd rocking motions.

17 / 40

The compressor is connected to the engine via _____?

r-belt

stag gears

v-belt or gears

lines

18 / 40

Play of the steering wheel should not exceed:

15 degrees

30 degrees

5 degrees

10 degrees

19 / 40

How should the pintle hook be when backing a dolly under the second trailer?

removed from the dolly

in a halfway open position

in the latched position

in the unlatched position

20 / 40

What should you do if you start a trailer skid?

use your trailer hand brake

quickly step on the brakes

release the brakes to get traction back

slowly apply a firm pressure to the brakes

21 / 40

How can you check slack adjusters?

by frequently checking the pressure gauge

by pulling hard on each slack adjuster

it is not possible to check manually

by using a fixed wrench

22 / 40

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

15 seconds

10 seconds

8 seconds

13 seconds

23 / 40

A "transport index" relates to products that are:

Liquid

Meant for human consumption

Overweight

Radioactive

24 / 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

25 / 40

Start by___when coupling.

coupling the converter hook to the pintle tongue of the first trailer

having the second trailer against the dock

coupling the tractor to the second trailer

backing the converter dolly under the second trailer

26 / 40

What should you hear when you test the trailer brakes by opening the service air line at rear of trailer with the hand valve on?

the emergency air line will release air

none of the answers listed

you should hear air escape from the open valve

the service brakes will move to a fully applied position

27 / 40

Select the true statement in regards to handing triples and doubles

none of the answers listed

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

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

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

28 / 40

If you are required to stop at railroad crossings, you must:

Proceed only when you are sure no train is coming.

Stop 15 to 50 feet before the nearest rail.

All of these answers are correct.

Remember to never shift gears while crossing tracks.

29 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

high

long

low

narrow

30 / 40

What does the amount of liquid allowed in the tank depend on?

The size of the tank.

All answers listed.

Whether and how much the liquid will expand during the trip.

The legally allowed weight limits.

31 / 40

The blind spot behind the bus could extend to how many feet?

100 feet

200 feet

400 feet

300 feet

32 / 40

After deciding the type of evacuation that is necessary, the next step you must take is:

Notifying the dispatch office of the evacuation.

Securing the bus.

Opening the emergency exits.

Dangle the radio microphone out of the driver window for later use.

33 / 40

If you are stopped on an incline, how can you start moving without rolling back?

fully engage the clutch

aggressively pump the accelerator

apply the parking brake

shift to neutral

34 / 40

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

Identification number

Descriptive name in roman print

Name in italics

Un marks

35 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

Pintle hook

Locking pins

Rock jaw

Kingpin

36 / 40

On a drawbridge, you do not need to stop, but must slow down and make sure it's safe, when:

There is a traffic light showing green.

None of these answers are correct.

Both of these answers are correct.

The bridge has an attendant or traffic officer who controls traffic whenever the bridge opens.

37 / 40

Select the statement that describes smooth bore tanks:

They are divided down into smaller tanks.

None of the answers listed.

They are divided with holes from liquid to flow through controlling surge.

They are 1 large tank.

38 / 40

In the event of an accident you should remember to do the following EXCEPT:

protect the area

notify authorities

stop any bleeding and keep the victims warm

move the victims out of the way immediately

39 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

They should never pop out

40 psi

20 psi

70 psi

40 / 40

What type fire extinguisher is required in the power unit of a placarded vehicle?

A ul rating of 5 b/c or above.

Any of these are acceptable.

A ul rating of 15 abc.

A ul rating of 10 b/c or above.

Your score is

The average score is 0%

4.5/5 - (2 votes)

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CDL Practice Test

How To Get A maine Commercial Drivers License

Applicants can apply for their CDL at the age of 21 years old. Those who are between the ages of 18 years old and 21 years old can apply for a CDL with some restrictions. These drivers cannot possess a HazMat Endorsement, drive doubles or triples, or drive out of the state of Maine. All applicants for a Maine CDL must possess a Medical Examiner’s Certificate or DOT medical card.

Any of the following instances will disqualify a driver from obtaining their CDL in the state of Maine.

Having a currently suspended, denied, canceled, or revoked driver’s license.
Having more than one driver’s license from multiple states.
Being convicted of driving impaired in a commercial vehicle 24 months prior to applying.
Having CDL driving privileges revoked in another state.

Applicants applying for a Maine CDL must successfully complete the necessary knowledge and skills test to receive their new driving privileges.

Endorsements
H – Hazardous Materials
N – Tank Vehicles
P – Passenger Transport
T – Doubles / Triples
X – HazMat and Tank Vehicles
L – Air Brakes
S – School Bus

Hit the Open Road

maine CDL License Test Tips

To obtain a Maine CDL and any special endorsements individuals must take one or more knowledge tests. To get a Class A, B, and C commercial driver’s license you must pass a 50 question general knowledge test relating to commercial driving. Class A applicants will need to answer an additional 20 questions about combination driving. When an applicant is seeking endorsements, they will be required to complete one additional knowledge test per endorsement. Tank Vehicle, Doubles, Triples, and Passenger Endorsements all have 20 questions assessments. School Bus Endorsements and Air Brake Restriction Removals require a 25 question test.

Once an applicant passes all necessary knowledge tests, they will be required to complete a skills test. This tests the applicant’s knowledge of hands on driving experience, vehicle inspection, and basic vehicle control. All applicants applying for Passenger Transport and School Bus Endorsements as well as removal of the Air Brakes Restriction must pass an additional skills test.

Additional Information

Information on the Maine Secretary of State Bureau of Motor Vehicles

The Maine Bureau of Motor Vehicles provides the oversight and administration of CDL requirements in Maine. To get more information contact them via:

Website: https://www.maine.gov/sos/bmv/commercial/index.html

Phone: 207.624.9000

Additional Maine CDL Helpful Links

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

maine CDL Practice Test