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

What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

Just dangerous placards are required.

None, you cannot load these materials together.

Poison 23 and dangerous.

Poison 23 and flammable gas 21.

2 / 40

What should you hook up before backing a tractor to a trailer for coupling?

the electrical service line

there is nothing to be hooked up

the safety bar

the service and emergency air lines

3 / 40

To test the security of the tractor semi trailer connection you should:

with the trailer brakes locked, rock the trailer back and forth

you don't need to check it

look at it carefully after pulling forward gently in a low gear against the locked trailer brakes

put the tractor in a high gear and quickly pull ahead

4 / 40

Which of the following statements about stopping distances is NOT true?

empty trucks require greater stopping distances because they have less traction

brakes, tires, springs and shocks are designed to work best when the truck is empty

trucks traveling at higher speeds require greater stopping distances

trucks traveling on ice or snow require greater stopping distances

5 / 40

Which signals may be used to warn of a stopped vehicle that contains explosives?

All of these answers are correct

Signal fires

Reflective triangles

Flares or fuses

6 / 40

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

The low center of gravity of the load.

The baffles create odd rocking motions.

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

The high center of gravity of the load.

7 / 40

"Outages" is the word to describe the amount of space required for liquids to expand in as they warm.

False, it's when the vehicle engine fails in some way

False, it's when the vehicle air braking system fails in some way

True

False, it's when the vehicle power system fails in some way

8 / 40

Which of the following statements about downshifting is NOT true?

downshift before starting down a hill

downshift before climbing a hill

downshift before entering a curve

downshift when you get to the bottom of a hill

9 / 40

What is always required before loading, driving, or unloading a tanker?

Shift into park

An inspection

Registration of driving plan

Clean the vehicle

10 / 40

Which of the following statements about "Radioactive" labels is true?

Yellow ii indicates the highest level of radioactivity.

Yellow iii indicates the highest level of radioactivity.

Black iii indicates the highest level of radioactivity.

White i indicates the highest level of radioactivity.

11 / 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

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

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

12 / 40

To be sure that air is supplied to the second trailer:

crank the engine brake

keep an eye of the air gauge for a drop of 30 psi

while driving at 10 mph, use the hand valve. The vehicle should stop in the same distance of a single trailer moving at 5 mph

open the emergency line shut off at the back of the second trailer

13 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

Voltmeter gauge

Oil pressure gauge

Air pressure gauge

Coolant pressure gauge

14 / 40

A truck with baffles will handle:

None of the answers listed.

With less front to back surge compared to trailers without baffles.

Heavier that it actually is.

The same as a tanker with no baffles.

15 / 40

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

Any amount

100 pounds

10 pounds

10 cartons

16 / 40

Which of the following are some suspension system defects?

leaking shock absorbers

broken leaves in leaf spring

cracked or broken spring hangers

all of these answers are correct

17 / 40

Why do air brakes take longer to stop than hydraulic brakes?

the lines are hotter

it takes more time for the air to flow through the lines

longer reaction time

none of the answers listed

18 / 40

You should adjust all the outside left and right side flat mirrors to see:

The rear right and left tires touching the ground as well as 200 feet behind the bus.

The passenger area inside the bus.

The entire area to the rear of the mirror along the side of the bus.

The children's exit path out of the main bus door.

19 / 40

What is a passive railway crossing?

The type of crossing with no cross buck sign.

The type of crossing on which the driver does not have to stop.

The type of crossing, which does not have any type of traffic control device.

The type of crossing where you can pass the tracks without stopping.

20 / 40

Carry-on baggage cannot be stored:

Behind the seats.

In the aisles and stairwells.

Under the seat.

On the seats.

21 / 40

How should the hand valve be used?

to test the trailer brakes

only when the trailer is loaded to its maximum weight

only when accompanied by the service brakes

only when accompanied by the foot brake

22 / 40

The designation RQ identifies the material's:

Regulatory quotient

Reportable quantity

Regulatory quantity

Reference quotient

23 / 40

The main reason you should pull the dolly out from under a trailer before disconnecting it from the trailer in front is:

it is possible that the dolly tow bar could fly up making it difficult to re-couple

so the rear-trailer's air brake system will stay charged and keep the trailer wheels locked to prevent rolling

removing the dolly before uncoupling is not the correct procedure

to provide additional lateral stabilization to the front trailer

24 / 40

How high should you crank the landing gear?

so that you can clear railroad tracks

until the crank handle is loose

as high up as it will go

for it to be 6 inches above the ground

25 / 40

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

The brake pushrod

The bounce absorbers

The brake chambers

The air lines

26 / 40

When approaching railroad tracks, stop your bus:

5-10 feet before railroad tracks.

Only if you have manual transmission, then proceed with flashers on.

15 and 50 feet before railroad crossings.

On the tracks so you can see if the train is coming.

27 / 40

Select the definition of "off-tracking."

it is wheen the rear wheel skid and the front wheels maintain a straight path

it is when the trailer wheels go in a different direction from the front wheels

none of the answers listed

it is when the rear wheels of the vehicle follow a different path way than that of the front wheels

28 / 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

They should never pop out

20 psi

40 psi

29 / 40

Why is the proper adjustment and use of all mirrors so vital to the safe operation of the school bus?

In order to see if small vehicles are driving in the bus blind spots.

In order to observe the danger zones around the bus.

In order to clear up blind spots around the bus.

In order to observe the danger zones around the bus and look for the students, traffic, and other objects in this area.

30 / 40

Be careful to check the_____when unloading the smaller tanks of bulk heads.

weight distribution

percentage of alcohol

percentage of water

the fuel to air ratio

31 / 40

What is the purpose of the supply pressure gauge?

to inform you of how much air is in the tank

to inform you about how hot the air in the tank is

to inform you if there is too little air in the tank

all of these answers are correct

32 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

To prevent any steering problems.

To make sure that uncoupling easier.

To make sure the electrical connections are good.

To decease heat and noise.

33 / 40

The amount of liquid you can carry depends on:

The density or weight of the liquid.

All answers listed.

How much you can legally carry.

How much the liquid will expand during the trip.

34 / 40

What does outage mean?

It is the weight of the liquid.

It is how quickly the tanks drain.

It is the allowance needed for the expansion of liquid.

It is the movement of the liquid.

35 / 40

At around____the governor allows the air compressor to start pumping again:

225 psi

100 psi

125 psi

175 psi

36 / 40

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

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

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.

37 / 40

What should the driver pay special attention to when driving smaller tanks?

The distrubition of weight.

The level of the fluid.

The high center of gravity.

All answers listed.

38 / 40

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

To replace the rear door emergency buzzer.

All of these answers are correct.

To replace the parking brake.

As a safety feature when the exit door is open.

39 / 40

Select the vehicle that off-tracks the most.

a 5-axle tractor that is towing a 45-foot long trailer

a 5-axle tractor that is towing a 52-foot long trailer

a 5-axle tractor that is towing a 40-foot long trailer

a 5-axle tractor that is towing a 32-foot long trailer

40 / 40

What do you need to do to supply air to the air tanks of the second trailer?

open up the shutt off valves on the rear of the first trailer and close the shut off valve at the back of the second trailer

none of the answers listed

open the shut off valve at the back of both trailers

close the shut off valves at the back of each trailer

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