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 the low pressure warning is activated:

wait until the air brakes kick in automatically

maintain highway speed and keep an eye on your air pressure gauge

come to a safe stop while you still have control of the brakes

pump the brake pedal to come to a stop immediately

2 / 40

Select the true statement in regards to an application pressure gauge:

it shows how much air pressure you are applying to the brakes

it is connected to the generator

when accelerating it releases air

it prevents the brakes from failing

3 / 40

Off-tracking happens when going around a corner and:

the rear wheels follow a different pathway than that of the front wheels

the front part of the trailer pulls to the right

the rear part of the trailer goes into the shoulder

the rear wheels follow the front wheels in a straight path

4 / 40

What can you do at an accident site to help avoid another accident?

have a drink to calm your nerves

leave your vehicle, do nothing, and get to higher ground

put out warning devices so people don't run into the accident site

stay in your vehicle and do nothing until help arrives

5 / 40

Select the true statement in regards to your brake function when your ABS fails

there is a huge fire risk

the abs will need to be repaired but the brakes will function normally

you will need to pull over immediately

you will have no control over your truck as the brakes will not be functioning

6 / 40

Should the air pressure in the service air tanks fall below____the driver must be alerted via warning mechanism in the truck cab.

80 psi

60 psi

30 psi

50 psi

7 / 40

What are slack adjusters?

they are between the push rod on disc brakes and power screw

they are between the S-Cam on drum brakes and the push rod

all of these answers are correct

they are a part of the air brake system that adjusts the brakes

8 / 40

Which of the following is a necessary qualification for non-bulk packaging?

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

All of these answers are necessary qualifications.

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

9 / 40

If you work for an interstate carrier:

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.

If there are no defects, no report is necessary.

10 / 40

To transport cargo safely, which of these are you NOT responsible for?

ensuring the freshness of sealed cargo

recognizing possible overloads

making sure that cargo is properly secured

inspecting the cargo

11 / 40

There should be ___space between the upper and lower fifth wheel after coupling.

1/30 inch

none of the answers listed

1/8 inch

1/12 inch

12 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

total weight of the vehicle and cargo

time of day

weather

length and steepness of grade

13 / 40

The cause of almost half of all truck driver deaths are:

a result of following behind too closely

a result of excessive speed

a result of rollover

a result of changing lanes too frequently

14 / 40

What position should the tractor protection control valve be in after coupling?

lowered

raised

normal

mid position

15 / 40

You should check that the following makes an audible noise:

Air leaks

Electric or air horn

Engine brakes

Radio system

16 / 40

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

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

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 try to avoid driving next to others when possible

17 / 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?

70 psi

20 psi

40 psi

They should never pop out

18 / 40

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

notify authorities

stop any bleeding and keep the victims warm

move the victims out of the way immediately

protect the area

19 / 40

Which two special conditions indicate that you should downshift?

starting up a hill and finishing a curve

starting down a hill and finishing a curve

starting up a hill and entering a curve

starting down a hill and entering a curve

20 / 40

Select the two things that are important in preventing a rollover:

drive slowly around turns and keep the center of gravity of the cargo as high as possible

maintaining properly inflated tires and an even load on the trailer

drive slowly around turns and keep the cargo as close to the ground as possible

the length and weight of the vehicle

21 / 40

By law, the warning lights must only be used when approaching a:

Any stop the bus makes.

Stop to load or unload students.

Sharp turns.

Busy intersection.

22 / 40

The CDL manual indicates the last step on picking up students at the bus stop is as follows:

Activate the amber flashing caution lights to warn vehicles that the bus will stop to load passengers soon.

Make a final check to confirm all traffic stops before opening the bus door and signaling students to approach.

Open the service door just enough to activate the alternating red light when traffic is in a safe distance from the bus.

Place transmission in park or neutral and set parking brake.

23 / 40

Two causes of tire fires are ______.

hot brakes and under-inflated tires

duals that touch and road debris

under-inflated tires and duals that touch

under-inflated tires and poor retreads

24 / 40

Select the true statement in regards to a converter dolly:

none of the answers listed

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

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 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

25 / 40

The direction of liquid movement not prevented by baffles is:

Back to front.

Bottom to top.

None of the answers listed.

Side to side.

26 / 40

Select the true statement:

A "bobtail" tractor will take longer to stop than a combination vehicle that is fully loaded down to the maximum weight.

Lighter vehicles requiring more braking power to stop compared to heavier vehicles.

None of the answers listed.

Wait as long as possible to brake when driving a heavy vehicle.

27 / 40

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

in a closed position

in a closed position for the rear trailer and an open position for the front trailers

in an open position

in an open position for the rear trailer and a closed position for the front trailer

28 / 40

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

The higher center of gravity on a tank truck.

All answers listed.

The posted speed limit may be too high for safety.

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

29 / 40

What should you check for when inspecting a converter dolly?

that the safety chains are secured to the trailer

that the converter dolly air tank drain valve is in the closed position

that the spare tire is secured if there is one

all answers listed

30 / 40

You must have placards for explosives, poison gas or flammables exceeding:

100 pounds

10 cartons

10 pounds

Any amount

31 / 40

The system that needs to be checked for signs of leaks with rust or carbon soot and damage is the _____.

air brake system

exhaust

fifth wheel

none of the answers listed

32 / 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 40 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.

No closer than 10 feet and no further than 60 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.

33 / 40

When accelerating:

"hammer down" when your wheels start to spin

speed up smoothly and gradually and avoid jerking

always use the parking brake to slow down

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

34 / 40

Which of the following is the proper definition of a cargo tank?

None of these answers are correct.

A bulk container which can be securely affixed to a vehicle.

A bulk container not permanently attached to a vehicle.

A bulk container permanently attached to a vehicle.

35 / 40

Always try to back toward the driver's side because

your truck will naturally pull toward the driver's side

all of these answers are correct

it's more comfortable for turning your neck

you can see better, watching the vehicle rear out the side window

36 / 40

When does stab braking occur?

when the wheels lock up, release the brakes

all of these answers are correct

when the wheels start rolling, apply the brakes

apply pressure all the way on the brake pedal

37 / 40

What will occur if you cross the connect the air lines?

the tractor will not be able to move

there will not be air going to the trailer brakes

the tractor brakes will lock up

nothing will occur, it'll funciton as normal

38 / 40

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

you should try to avoid driving next to others when possible

all answers listed

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

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

39 / 40

The golden rule for school buses when approaching and crossing railroad tracks is:

None of these answers are correct.

Stop, go, and stop.

Stop, look, and listen.

Stop, look, and turn on the radio lights overhead.

40 / 40

What is the best way to stop all skids?

accelerate and countersteer

quickly turn the steering wheel side to side

restore traction back to the tires

use controlled or stab braking

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

CDL Category Practice Tests

CDL Practice Test

How To Get A maryland Commercial Drivers License

Hit the Open Road

maryland CDL License Test Tips

Additional Information

Information on the Maryland Motor Vehicle Administration

Additional Maryland CDL Helpful Links

maryland
CDL Practice Test