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

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

125

200

250

2 / 40

In what position should the converter dolly air tank drain valves and pintle hook be in?

closed and latched

open and open

closed and open

open and latched

3 / 40

The crack-the-whip effect is more likely to cause the front trailer to tip over.

true

trailers never tip

false

there is an equal chance for trailers to tip

4 / 40

Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?

Impossible to tell without more information

Only if the arm is down telling vehicles to stop

Yes

5 / 40

You should check the_____when loading small tanks equipped with bulkheads.

fuel to air ratio

percentage of water

expansion rate

distribution of the weight

6 / 40

Select how you would check the truck's slack adjusters.

listen for any strange noises while applying pressure to the brake pedal

all of these answers are correct

while wearing gloves, pull hard on each slack adjuster that you can reach

brake hard after accelerating

7 / 40

You do not have a hazardous materials endorsement on your commercial driver license. When can you legally haul hazardous materials?

Only in the event of a federally declared emergency situation.

Only when the shipment does not cross state lines.

Never.

Only when the vehicle does not require placards.

8 / 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 brake chambers

The air lines

The bounce absorbers

9 / 40

If students must cross the street, when they get off the bus, which statement is true?

The student should wait to cross the street until the bus continues on its route.

When the driver signals that it is safe to proceed, the students must run across the street to reduce the exposure to danger.

If the bus is equipped with the crossing gate, the danger of running over the child is eliminated.

For crossing, students should make eye contact with the bus driver and wait for the driver's signal that it is safe to proceed.

10 / 40

Which of the following types of emergency equipment must you have on your bus?

Spare electric fuses, fire extinguisher, and accident reporting kit.

Reflectors, fire extinguisher, and accident reporting kit.

Fire extinguisher, spare electric fuses, and reflectors.

Hydraulic jack, fire extinguisher, and signal flares.

11 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

safety for yourself and other road users

because other drivers do it

to make sure the vehicle will make your destination

to make sure nothing has been stolen from the vehicle

12 / 40

What are spring brakes?

they are big springs with air pressure in them if the air pressure decreases, the brakes are applied

they are large springs that are held closed by air pressure if the air pressure is increased the brakes are applied

none of the answers listed

they are powerful springs that are restrained by air pressure when the air pressure is removed, the brakes are applied

13 / 40

A drawbridge does not have a traffic light showing green or a traffic control attendant. How many feet before the draw of a bridge must a bus driver stop?

At least 50 feet.

At least 100 feet.

At least 25 feet.

At least 75 feet.

14 / 40

Which of the following statements about the bus interior is false?

The seats must be safe for riders all seats must be securely fastened to the bus.

If you use your outside lights, you don't need to turn on red emergency door light.

If there is a red emergency door light, it must work.

Never drive with an open emergency exit door or window.

15 / 40

When transporting both hazardous and non hazardous materials, your bills must:

Identify the materials by the letter x or rq in the hm column.

Have the hazardous materials highlighted.

Describe the hazardous materials first.

Any one of the above.

16 / 40

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

Look at the shipping papers.

Ask the driver.

Check for a fence around the loading dock.

Open and inspect every package and container.

17 / 40

Select the two reasons as to why special care is needed when driving a tank vehicle:

None of the answers listed.

The chance of rollover and of spontaneous combustion.

The danger of surge and the high center of gravity.

The danger of surge and the low center of gravity.

18 / 40

Water is drained from the compressed air tanks because:

the water could freeze in cold weather and cause braking failure

to keep the oil in the air compressor clean

the water will over cool the compressor

braking power is decreased due to the low boiling point of water

19 / 40

Alcohol evaporators in some air brake systems help to:

decreases the risk of water in the air brake valves in cold weather

cleans out oil from the air lines

it removes fuel from the air lines

decrease the chances of ice in the air brake valves in cold weather

20 / 40

When backing, what is the best method to use to avoid blind spots?

look at your path

use mirrors on both sides

use a helper

back towards the driver's side, where you can see better

21 / 40

Select the answer that is not a part of the braking process when driving a tractor-trailer combination vehicle that has ABS:

only use the braking that is necessary to safely stay in control of the vehicle

you should brake in the same manner regardless of what you are driving

you should drive at a higher speed to keep the trailer in line

you should monitor the tractor and trailer as you decrease your speed to keep control

22 / 40

If you are traveling at 55 mph in a 30-foot vehicle, you should leave how many seconds of following distance?

3 seconds

6 seconds

7 seconds

4 seconds

23 / 40

A minimum tread depth of 2/32 inch is required for:

Non-steer axle tires.

Driving axle tires.

Donut tires.

Parking axle tires.

24 / 40

Two causes of tire fires are ______.

under-inflated tires and duals that touch

duals that touch and road debris

hot brakes and under-inflated tires

under-inflated tires and poor retreads

25 / 40

A driver of a tanker should use an escape ramp when _____.

only when it's raining

only in ideal conditions

the vehicle has lost braking power

when the tanks has bulkheads

26 / 40

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

air brake system

fifth wheel

none of the answers listed

exhaust

27 / 40

Select which is not a mandatory emergency equipment:

A rated and properly charged fire extinguisher.

Extra electrical fuses.

6 fuses, 3 red reflective triangles, or 3 liquid burning flares.

Tire changing equipment.

28 / 40

This item should not be rusted, bent, or damaged and centered over evenly spaced tires and dual wheels.

Fifth wheel

Frame

Lug bolts

Spacers

29 / 40

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

you will need to pull over immediately

there is a huge fire risk

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

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

30 / 40

How should the trailer be lined up when preparing to back the tractor up?

about 12 degrees to the left

directly in front of the trailer

directly behind the trailer

about 12 degrees to the right

31 / 40

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

none of these answers are correct

warning devices for parked vehicles, first aid kit, flares

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

first aid kit, fire extinguisher, flares

32 / 40

Select the situation in which you should use the hand valve to park a combination vehicle.

during the winter

when parking at loading docks

in no situation

when parking on a grade

33 / 40

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

when the tractor brakes lock up

when the trailer pushes the towed vehicle sideways

when the trailer slides to the right into the shoulder

when the tractor spins around

34 / 40

If you park the trailer at an angle to the tractor when uncoupling:

the process will be faster and easier

damage could occur to the landing gear

you won't have to take as many steps around the vehicle

you will have more space to maneuver in the lot

35 / 40

Buses may NOT have recapped or regrooved tires:

When it's been raining.

On front wheels.

Anywhere except on the front wheels.

On the outside rear wheels.

36 / 40

This gauge will indicate if the generator or alternator is charging:

Gas tank

Coolant

Oil pressure

Voltmeter/ammeter

37 / 40

Overhead inside mirror is used to:

See the blind spot immediately behind the bus.

See the area where students exit the bus.

Monitor traffic that approaches and enters the blind spot area.

See all of the students.

38 / 40

Which of the following answers lists the three types of emergency equipment you must have on your bus?

Emergency reflectors, fire extinguisher, signal flares and tire repair kit.

Hydraulic jack, fire extinguisher, signal flares.

Fire extinguisher, spare electrical fuses (unless equipped with circuit breakers), and emergency reflectors.

Repair kit, spare electric fuses (unless equipped with circuit breakers), and fire extinguisher.

39 / 40

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

Busy intersection.

Stop to load or unload students.

Any stop the bus makes.

Sharp turns.

40 / 40

You should be extra cautious when___while driving a smooth bore tanker combination.

stopping and starting

driving up a hill

driving down a hill

unloading or loading

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