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

Select the true statement about dual air brake systems:

they have one set of controls for two air brake systems

they have a single set of air tanks and hoses

they are required to have two warning alarms

they require less time to build up air pressure

2 / 40

Air brake systems should not lose air faster than____when testing for air leakage rates in combination vehicles before applying the brake pedal.

2 psi a minute

3 psi a minute

6 psi a minute

5 psi a minute

3 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

More than 250 pounds total of all allowed hazardous materials.

More than 750 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 500 pounds total of allowed hazardous materials, and no more than 100 pounds of any one class.

More than 1000 pounds total of allowed hazardous materials, and no more than 200 pounds of any one class.

4 / 40

What are the three types of emergency equipment that you must have with your vehicle?

fire extinguisher, spare electrical fuses, warning devices for parked vehicles

warning devices for parked vehicles, first aid kit, flares

first aid kit, fire extinguisher, flares

none of these answers are correct

5 / 40

How do you test the trailer service 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

release air to the spring brakes

6 / 40

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

in ideal conditions

never

whever you feel like it

when it is raining

7 / 40

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

you should only ever use the parking brake

there is a possibility it will make the trailer skid

it does not work as well as the foot brake does

it will cause the tractor to shake

8 / 40

How do you check the power steering fluid?

Via the power steering fluid dipstick.

Undo the oil fill cap and check the level.

Via indicator light on the dashboard.

By looking through the reservoir sight glass.

9 / 40

Who is responsible for packaging, labeling, and preparing the hazardous material shipping papers for a common carrier?

Your spouse

The shipper

The carrier

The driver

10 / 40

Which of the following types of cargo can never be carrier on a bus with riders?

Emergency tear gas.

Emergency drug shipments.

Emergency hospital supplies.

Small arms ammunition (orm-d).

11 / 40

What does outage mean?

It is how quickly the tanks drain.

It is the weight of the liquid.

It is the movement of the liquid.

It is the allowance needed for the expansion of liquid.

12 / 40

If there is no traffic light or attendant, how far from the draw of a drawbridge must you stop?

50 feet

5 feet

30 feet

100 feet

13 / 40

Select the definition for outage:

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.

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

14 / 40

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

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

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

None of these answers are correct.

Quickly flash your high beams to give them fair warning.

15 / 40

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

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 at a sharp right to release the trailer brakes

pull the tractor ahead gently with the trailer brakes locked down

16 / 40

The transport index of a radioactive material:

None of these answers are correct.

Is something that only the shipper needs to worry about.

Is another way of writing the weight of the package.

Tells the degree of control needed during transportation.

17 / 40

Select the true statement about emergency brakes:

all of these answers are correct

they are required on all commercial vehicles

they are required to be held on by a mechanical force

they are required to be activated the loss of air pressure

18 / 40

It is good practice to_____when uncoupling.

have the glad hands coupled together

have the glad hands coupled to the dummy couplers

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

all answers are appropriate

19 / 40

When should air tanks be drained?

every 7 days

they don't need to be drained

at every restroom break stop

at the end of each working day

20 / 40

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

Talking with riders while driving.

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

Refueling in a closed building with riders on board.

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

21 / 40

A commercial motor vehicle (CMV) is defined as:

a vehicle with a gross weight over 26,001 lbs

a vehicle transporting hazardous materials

all of these answers are correct

a vehicle transporting 16 or more passengers

22 / 40

When does your vehicle's single brake system need an adjustment?

when the governor stops between 75-90 psi

if the compressor cuts out at between 70 and 90 psi

if the pressure builds from 50 to 75 psi in less than 3 minutes

when the pressure builds from 85 to 100 psi in less than 1 minute

23 / 40

This object is required to be checked for damage, that it's secure, and strong enough to handle any cargo.

The header board

The fifth wheel

The apron

The platform

24 / 40

The average person requires how many hours of sleep per 24 hour period?

7 or 8

5 or 6

6 or 7

8 or 9

25 / 40

How do you know when your brakes are fading?

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

your speed increases when pressure is removed from the brake pedal

the brake pedal flops to the cabin floor

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

26 / 40

Carry-on baggage cannot be stored:

In the aisles and stairwells.

On the seats.

Under the seat.

Behind the seats.

27 / 40

You should be in the proper gear before going down a hill because:

it builds up the air pressure in the air tanks

water may build up in the air tanks if you do not rely on the engine brake

it helps control your speed better

brakes may fail or fade from excessive heat due to relying on them too much and not using the engine brake effect

28 / 40

How do you hook a combination to a second trailer without spring brakes and without using wheel chocks?

disconnect the air supply lines after supplying air to the trailer air system via the tractor

make sure the trailer won't roll when coupling

go ahead and couple it

have the trailer electric cord to a generator so it can supply braking power

29 / 40

Select the true statement in regards to stopping distance and speed:

You require 4 times as much stopping distance when driving at 40 mph compared to 20 mph.

A wet road will double the stopping distance at any speed.

All answers listed.

Larger / heavier vehicles generally take longer to stop.

30 / 40

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

it depends on how heavy the load is

1/2 to 1 inch

1 to 1 1/2 inches

none

31 / 40

Why does it take special skills to haul a tank vehicle?

There is a high center of gravity.

The weight of the load is high up off the road.

It is top heavy.

All of the answers listed.

32 / 40

Which of the following should you do when driving the school bus in high wind?

Keep a strong grip on the steering wheel and try to anticipate gust.

Speed up to get away from the wind as quickly as possible.

Drive only head-in to the wind to avoid cross-wind buffeting.

Pull off the road to wait for the winds to die down.

33 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

when the trailer pushes the towed vehicle sideways

when the tractor brakes lock up

when the tractor spins around

when the trailer slides to the right into the shoulder

34 / 40

You should make sure the_____before backing under a trailer.

air brakes have been shut off

trailer brakes are locked down

landing gear is fully raised

tractor shut off valve is normal

35 / 40

How high should you crank the landing gear?

so that you can clear railroad tracks

as high up as it will go

for it to be 6 inches above the ground

until the crank handle is loose

36 / 40

Which two special conditions indicate that you should downshift?

starting down a hill and finishing a curve

starting down a hill and entering a curve

starting up a hill and finishing a curve

starting up a hill and entering a curve

37 / 40

You must be alert for road hazards so that:

You will have time to plan your escape if the hazard becomes an emergency.

You can help impaired drivers.

Law enforcement personnel can be called.

Accident reports will be accurate.

38 / 40

An air system that is fully charged will typically have ___ psi of pressure.

250

125

200

39 / 40

In Column 1 the symbol "I" means:

International transportation.

International restrictions.

Invalid substance.

Iodine.

40 / 40

Rods, connecting links, and arms from the steering box to the wheel are a part of the:

Braking system

CB radio

Steering linkage

Power steering fluid

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