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

A "transport index" relates to products that are:

Radioactive

Meant for human consumption

Liquid

Overweight

2 / 40

When must a driver’s inspection report be completed?

All of these answers are correct.

Only if defects are found.

Before driving your bus.

At the end of each shift.

3 / 40

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

The next stop.

Off the regular route.

As safe as possible, or the next stop.

Dark and poorly lighted.

4 / 40

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

the fuel to air ratio

percentage of water

percentage of alcohol

weight distribution

5 / 40

Select the reason as to why air tanks need to be drained:

tanks usually do not need to be drained

to prevent the left sided brake from locking up

to provide greater control of your vehicle

to release water and other contaminents which may cause brakes to fail in freezing weather

6 / 40

Select the true statement about handling triples and doubles:

because of the crack the whip effect, the rear trailer of a 100-foot triple is less likely to tip over

due to off-tracking, a triple bottom rig can come to a stop faster than a 5-axle tractor

a tip over of the rear trailer can occur due to sudden movements of the steering wheel

triples and doubles handle the same as singles

7 / 40

If your bus is equipped with an emergency exit door, it must:

Always have a red door light turned on.

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

Be secured when the bus is being driven.

All of these answers are correct.

8 / 40

What does the amount of liquid you can carry depend on?

The outage of the liquid.

The vehicle's horsepower rating.

The material the baffles are made from.

The center of gravity.

9 / 40

What kind of surge occurs with baffles?

Bottom to top

Side to side

Circular

Back to front

10 / 40

What is a passive railway crossing?

The type of crossing with no cross buck sign.

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

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

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

11 / 40

What is most likely to occur when driving a set of doubles and a set of trailer wheels goes into a skid?

nothing will occur

the rig will slide sideways but stay in a straight line

there will be a trailer jackknife

no matter how you turn the steering wheel, the rig will continue in a straight line

12 / 40

Animals and human foodstuffs should not be loaded in the same vehicle with?

Poisons

Explosives

Flammable liquids

Flammable gases

13 / 40

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

in an open position

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

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

in a closed position

14 / 40

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

pull the tractor ahead gently with the trailer brakes locked down

pull forward 25 feet, turn to the right, and then to the left

pull the tractor at a sharp right to release the trailer brakes

pull forward 25 feet, turn to the left, and then to the right

15 / 40

What is the best way to figure out how many seconds of following distance you have?

wait until a vehicle passes a shadow or landmark, then count the seconds until you pass it

get 1/4 closer to the car in front of you, then back off again multiply how long this took you by 4 for following distance

use the stopwatch on your phone to try to determine how long before you reach a mile marker after the car in front of you appeared to reach it

text a friend and tell them to text you back in ten seconds and see how long that seemed to take compared to how far you traveled

16 / 40

Select the true statement in regards to driving a truck with triple or double trailers:

the truck requires increased following distance compared to smaller vehicles

extra care should be taken when driving in bad weather and in the mountains

the risk of trailer jackknifes and tipping is increased compared to shorter trucks

all answers listed

17 / 40

When driving a combination vehicle, the trailer breaks away severing the air lines. The trailer brakes should come on and ____.

the tractor to lose all air pressure in the tanks

the tractor protection valve will close

the tractor will gain air pressure

the trailer supply valve will remain open

18 / 40

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

400 feet

100 feet

200 feet

300 feet

19 / 40

When not towing a trailer, why should the tractor glad hands be locked?

it keeps water and dirt out of the lines

this should never be done

the system pressure will not build up

the connected brake circuit will become a back up air tank

20 / 40

Where can you find a shipper’s certification?

On the original shipping paper.

There is no such thing.

On all packages.

It is a separate document that all hazmat drivers must keep in their vehicles.

21 / 40

To decide which placards you need, if any, what three things do you need to know?

Materials hazard class, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

Materials hazard class, location being shipped, and amount of all hazardous materials on your vehicle.

Materials hazard class, percentage of total volume, and amount of all hazardous materials on your vehicle.

Packing group numbers, amount being shipped, and amount of all hazardous materials of all classes on your vehicle.

22 / 40

Some city transit buses may have a brake-door interlock system, this system:

Releases the brakes.

Works when the rear door is open.

Should be used in place of the parking brake.

Should be used in emergencies.

23 / 40

This object should not be worn dangerously thin where visible.

The brake chambers

The brake linings

The air system lines

All answers listed

24 / 40

Where are shut off valves located on trailers that are doubles or triples?

on emergency air lines

on service air lines

on emergency and service air lines

on parking brake lines

25 / 40

Select the factors that can cause your brakes to fade or fail:

using the service brakes excessively

the brakes are out of adjustment

all of these answers are correct

not relying on engine braking enough

26 / 40

How do you test the trailer service brakes?

release air to the spring brakes

apply the hand control and check to see if you feel the trailer brakes come on

test the brakes out while driving at 5 mph

apply pressure to the brake pedal

27 / 40

When using turn signals, which of the following should be avoided?

signal when you want to change lanes

signal just before you start to make a turn

signal before you exit

signal when you are merging into traffic

28 / 40

What should you hear when you have the hand valve on and are testing the trailer brakes by opening the service air line at the back of the trailer?

the emergency line valve to release air

the service brakes more to a fully applied position

the engine brake to kick on

air leaving the open valve

29 / 40

When would you lock some emergency roof hatches in a partly open position?

For fresh air

First day of spring

Never

Whenever you enter a tunnel

30 / 40

When driving on a clear night with the vehicle lights on, your speed should be such that you can stop within _____.

the distance you can see ahead of you

2 times the length of your vehicle

the distance you will travel in 10 seconds time

the length of half a football field

31 / 40

With the engine cut off and the brakes released the air loss in a straight truck or bus should not be more than:

2 psi in a minute

3 psi in a minute

4 psi in a minute

5 psi in a minute

32 / 40

How should you know when to shift?

every 3 to 5 seconds or engine speed

engine speed and the shift indicator light

road speed and wind speed

engine speed and road speed

33 / 40

You are driving a 40 foot truck at 35 MPH, how much space (in seconds) should you keep in front of you?

3 seconds

5 seconds

6 seconds

4 seconds

34 / 40

How often should you check your cargo?

within the first 50 miles after beginning a trip

every 150 miles or every three hours

all of these answers are correct

after every break you take during driving

35 / 40

You should_____when the low pressure warning is activated:

wait until the air brakes kick in automatically

pump the brake pedal to come to a stop immediately

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

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

36 / 40

Double and triple trailers should be driven with care to avoid a rollover or jacknife.

true

only on downgrades

only in ideal conditions

false

37 / 40

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

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

The high center of gravity of the load.

The baffles create odd rocking motions.

The low center of gravity of the load.

38 / 40

Drivers placard their vehicle to _____ the risk.

take away

elevate

communicate

minimize

39 / 40

Never refuel your bus:

With a higher grade of fuel.

In a closed building with passengers on board.

With any of the windows open.

Without a static chain.

40 / 40

To find out if a shipment includes a hazardous material, you should:

Check for a fence around the loading dock.

Look at the shipping papers.

Ask the driver.

Open and inspect every package and container.

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