maryland
CDL Practice Test

Welcome to the Maryland CDL practice test site. Questions on these practice tests are similar to those that are found on the Maryland CDL test and presented by the MVA. Use these practice test questions as you prepare to obtain a Maryland CDL. These tests are free 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 Test" button below to begin.

1 / 40

You should___when driving down a long steep hill.

begin braking once the vehicle is 10 mph above safe speed

use the engine brakes only

repeatedly pump the brake pedal

release the brake once the vehicle is traveling 5 mph below the safe speed

2 / 40

Which of the following parts do not get checked in the Bus Interior inspection:

Seat coverings.

Each hand-hold and railing.

Emergency exit handles.

Signaling devices, including the restroom emergency buzzer, if the bus has a restroom.

3 / 40

You need to be extra careful when driving smooth bore tanks:

When hauling food or milk products.

All answers listed.

When unloading or loading.

When stopping or starting.

4 / 40

When accelerating:

do not engage the clutch before you take your foot off the brake

speed up smoothly and gradually and avoid jerking

always use the parking brake to slow down

"hammer down" when your wheels start to spin

5 / 40

This object should not move more than an inch by pulled by hand with the brakes released for manual slack adjusters.

The brake chambers

The bounce absorbers

The air lines

The brake pushrod

6 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

Turn it off on arrival—use other power to run the pump.

Turn if off after unhooking.

Leave it on the entire time.

Turn it off before unhooking.

7 / 40

What should you do if you start a trailer skid?

release the brakes to get traction back

use your trailer hand brake

slowly apply a firm pressure to the brakes

quickly step on the brakes

8 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

Bolt spacers

Lug nuts

None of the answers listed

Rims

9 / 40

This object is not checked at the rear of the trailer.

The back doors

The header board

The mud flaps

The bumper

10 / 40

If your bus has an emergency exit door, it must:

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

Be closed when operating the bus.

All of these answers are correct.

Have a red electric door light turned on at all times.

11 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

none of the answers listed

make sure the trailer will not roll away when coupling

supply air to the trailer air system via the tractor and then disconnect the emergency line

use a portable generator to supply brake pressure

12 / 40

A baffled tanker has:

Separate compartments inside the trailer.

No side to side surge.

Bulkheads with holes that allow liquid to flow through it.

Balls floating in it to increase the speed of the liquid movement.

13 / 40

Should your air compressor stop working:

there will still be air pressure left in the air tanks

there will be no affect to your brakes

you will lose your ability to brake immediately

the brakes will lock up on you immediately

14 / 40

At what "cut out" level does the governor stop pumping air?

100 psi

125 psi

75 psi

150 psi

15 / 40

Select the true statement about double or triple trailers.

they can have a dangerous "crack the whip" effect

they present a rearward amplification hazard

all answers listed

they can roll over due to abrupt steering movements

16 / 40

The brake pushrod should not move more than____for manual slack adjusters.

an inch when pulled by hand with the brakes released

movement is not allowed

1-2 inches while the brakes are set

checking is not required in vehicles built after 1994 as they have automatic slack adjusters

17 / 40

How should you inspect a converter dolly?

as if it is an axle with a fifth wheel

as if it is an engine

as if it is cargo

as if it is a trailer

18 / 40

The floor liner for explosives may not:

Contain cracks or holes.

Contain steel or iron.

Contain nails or screws.

Contain any of these materials.

19 / 40

The gauge that indicates normal or increasing lubrication pressure to prevent engine seizure, failure or breakdown is:

Oil pressure

Coolant system

Power steering

Voltmeter

20 / 40

____is what can legally hold the parking brake or emergency brake in position for a bus, truck, or truck tractor.

Air pressure

Brake pressure

Spring pressure

All of these answers are correct

21 / 40

The trailer should be lowered so that _____.

it is slightly raised when the tractor is backed under it

you are able to use the landing gear to make adjustments

the tractor comes in contact with the nose of the trailer

the trailer is high above the fifth wheel

22 / 40

You should_____to uncouple the converter dolly.

chock the wheels, lower the landing gear, and disconnect the safey chains

lower the landing gear, disconnect the safety chain, and chock the wheels

chock the wheels, disconnect the safety chains, and then lower the landing gear

disconnect the safey chains, lower the landing gear, and chock the wheels

23 / 40

Before backing under the trailer after connecting the air lines you should:

supply air to the trailer system and then pull the air supply knob out

double check to make sure the trailer brakes are off

have a random pedestrian direct your path of travel

take a walk around the vehicle to make sure it is clear of obstructions

24 / 40

Select the reason as to why you should not use the trailer hand valve while driving.

the trailer brakes will not be evenly applied

it should not be used on dry roads due to road conditions

it releases too much air from the system

it could cause the trailer to skid

25 / 40

Which is more likely to tip over due to the crack the whip effect?

any trailer

a fully loaded trailer behind the tractor

the last trailer of a triple

the last trailer of a double

26 / 40

What is a king pin?

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

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

it is a pin that locks the air brake lines together

27 / 40

What will occur as a result of failing to perform all 3 components of the air brake check?

An automatic failure of the vehicle inspection test.

A deduction of 15 points.

The driver must restart the pre-trip from the beginning.

None of the answers listed.

28 / 40

To test the tractor-trailer connection for security, you should:

drive forward in a low gear with the trailer brakes locked and then look at it carefully

drive forward in a high gear with the trailer brakes on and check it

drive forward with a sharp jerk

rock the trailer side to side with the trailer brakes on

29 / 40

An emergency escape ramp should be used _____.

any time the truck experiences a significant loss of braking power

only in ideal conditions

only when it is raining

only when not carrying a load

30 / 40

Select the statement that is true in regards to managing space to the sides.

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

all answers listed

you should try to avoid driving next to others when possible

high gust winds do not cause any issues for triples and doubles

31 / 40

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

Look slightly to the right at a right lane or edge marking, if available.

Turning your high beams on to "get back at them".

Quickly flash your high beams to give them fair warning.

None of these answers are correct.

32 / 40

If your engine runs a pump used during delivery of compressed gas, should you turn off the engine before or after unhooking hoses after delivery?

Turn it off after product transfer, before you unhook the hose.

Turn it off during product transfer, while unhooking the hose.

None of these answers are correct.

Turn it off before product transfer, before you hook the hose.

33 / 40

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

At any time.

In a closed building.

Unless on a scenic tour bus.

With any window open.

34 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

none

1/2 to 1 inch

it depends on how heavy the load is

1 to 1 1/2 inches

35 / 40

Which of these statements about speed management and braking is true?

You need about four times as much stopping distance at 40 mph as at 20 mph.

Stopping time increases by one second for each 10 mph over 20 mph.

The total stopping distance of a bus is the distance it takes to stop once the brakes are applied.

The posted speed limit will always allow you to stop safely.

36 / 40

The shipping papers for hazardous materials can be found:

Any of the above locations.

In a pouch on the driver's door.

In clear view, within reach while driving.

On the driver's seat when out of the vehicle.

37 / 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

0.72

0.5

0.85

38 / 40

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

Refueling in a closed building with riders on board.

Towing a disabled bus with riders aboard when getting off would be a safe option.

Talking with riders while driving.

Fueling your bus with riders on board if about to run out of fuel.

39 / 40

When you discharge an unruly passenger, you must choose a place that is:

Off the regular route.

As safe as possible, or the next stop.

The next stop.

Dark and poorly lighted.

40 / 40

The bus driver must accept responsibility for supervising and controlling students while on the bus route. Who is the person in charge?

The school district superintendent.

Students on the bus.

Parents of the students on the bus.

Bus driver.

Your score is

The average score is 0%

5/5 - (2 votes)

CDL Category Practice Tests

CDL Practice Test

How To Get A maryland Commercial Drivers License

Applicants can apply for any CDL and necessary endorsements when they are 21 years of age or older. Applicants may apply for a restricted CDL at the age of 18 years old. This restricted CDL limits the driver to intrastate driving and doesn’t allow HazMat Certification, driving double or triple trailers, or driving school buses with children on board. All applicants must possess a current DOT medical card to be considered for their CDL.

All drivers that have the following issues are considered disqualified from receiving their Maryland CDL.

Having a current license suspended, revoked, denied, or canceled.
Possessing more than one state driver’s license.
Having restricted CDL driving privileges in another state.
Being convicted of driving impaired within 24 months prior to submitting a CDL application.

All applicants must successfully pass both a skills test and a knowledge test in order to receive their Maryland CDL. To receive specific endorsements, individuals must pass examinations about the endorsement as well.

Endorsements
X – Tank and Hazmat Endorsement
H – Hazardous Materials
N – Tank Vehicles
P – Passenger Vehicles
T – Double / Triple Trailers

Hit the Open Road

maryland CDL License Test Tips

Knowledge tests are required to receive Class A, B, and C CDLs and endorsements. All applicants must take a 50 question test and pass with a score of 40 or higher to receive their CDL permit. Those applying for a Class A license must take a 70 question test, with 20 of the questions pertaining directly to combination vehicles. All endorsements require their own specific examination that has been 20 and 30 questions. All assessments must be passed with a score of 80 or higher.

Each applicant is required to complete a three-section skills assessment. This assessment is comprised of a vehicle inspection, driving test, and basic control test. To pass the skills portion of the CDL assessment, applicants must successfully show their knowledge in all three areas. Those seeking vehicle-specific endorsements must take the skills test in that specific type of vehicle they want the endorsement for.

Additional Information

Information on the Maryland Motor Vehicle Administration

The Maryland Motor Vehicle Administration provides the oversight and administration of CDL requirements in Maryland. To get more information contact them via:

Website: http://www.mva.maryland.gov/drivers/apply/cdl/commercial.htm

Phone: 410.424.3011

Additional Maryland CDL Helpful Links

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

maryland CDL Practice Test