louisiana
CDL Practice Test

Below are test questions for the Louisiana CDL test. The site is free and you are able to take the practice test as many times as you need to. Questions in these practice tests cover questions from the Louisiana CDL manual and the Louisiana CDL study guide. The Louisiana CDL test contains 50 questions, of which candidates must answer 40 questions correctly to pass. 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 Quiz" button below to begin.

1 / 40

Which of the following statements about bus evacuation is true?

If time allows, notify the dispatcher about evacuation location, conditions, and type of assistance needed.

If time allows, walk through the bus and close all windows.

If time allows, backup to the stop before evacuating the bus.

If time allows, notify the police.

2 / 40

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

All of these answers are correct.

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

Always have a red door light turned on.

Be secured when the bus is being driven.

3 / 40

Alcohol evaporators in some air brake systems help to:

it removes fuel from the air lines

cleans out oil from the air lines

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

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

4 / 40

To test the tractor-trailer connection for security, you should:

drive forward in a high gear with the trailer brakes on and check it

drive forward in a low gear with the trailer brakes locked and then look at it carefully

drive forward with a sharp jerk

rock the trailer side to side with the trailer brakes on

5 / 40

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

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

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

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

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

6 / 40

What kind of surge can occur in a tank with baffles?

All answers listed

Back to front

Side to side

Bottom to top

7 / 40

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

200

250

125

8 / 40

If you are required to stop at railroad crossings, you must:

All of these answers are correct.

Remember to never shift gears while crossing tracks.

Proceed only when you are sure no train is coming.

Stop 15 to 50 feet before the nearest rail.

9 / 40

What is the most important reason for doing a school bus inspection?

To give the mechanic something to do.

For safety required by federal, state, and local laws.

To check for flat tires.

To assist the school principal with their report.

10 / 40

You should turn off your engine when loading flammable liquid unless:

The material does not need a placard.

You are a non-smoker.

You are loading at night and need the headlights.

You need the engine to run the pump.

11 / 40

Air pressure should build___with a dual air system.

from 70 to 125 psi in 60 seconds

from 85 to 100 psi in 45 seconds

from 50 to 80 psi in 60 seconds

from 60 to 100 psi in 45 seconds

12 / 40

You should check the_____when loading small tanks equipped with bulkheads.

fuel to air ratio

expansion rate

distribution of the weight

percentage of water

13 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

The release arm

The arm bar

The locking pins

The apron

14 / 40

The most dangerous time during the school bus ride is:

On long bus journeys.

Crossing railway crossing.

When loading and unloading students.

When the students become unruly on the bus.

15 / 40

______is a device that connects the service and emergency air lines between the tractor and trailer.

Glad hands

Top off valves

Service lines

Relay knife

16 / 40

Vehicle handling can become unsafe if the weight is not properly balanced. Hard steering can be caused by:

too much weight on the steering axles

under loaded front axles

high center of gravity

too little weight on the driving axles

17 / 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 for the rear trailer and an open position for the front trailers

in a closed position

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

in an open position

18 / 40

Select the false statement about tractor protection valves.

air is allowed to leak from the tractor line when it is closed

if the air pressure is low it will automatically close

the trailer air supply valve in the cab controls it

should the trailer air leak, it keeps the air in the tractor

19 / 40

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

Explosives

Poisons

Flammable liquids

Flammable gases

20 / 40

With the controlled braking method, you _____?

apply the brakes as hard as you can without locking the wheels

repeatedly tap the brakes as fast as you can

apply the brakes all the way until the wheels lock up, release the brakes and apply them again when the wheels start to roll again

lightly apply braking pressure

21 / 40

What is incorrect concerning disruptive passengers?

It may be safer to wait and discharge the disruptive passenger at the next scheduled stop or a well-lighted area where there are other people.

Don't discharge such riders where it would be unsafe for them.

You must ensure the disurptive rider's safety as well as that of others.

You must remove the disruptive passenger immediately for the safety of the others.

22 / 40

Carry-on baggage cannot be stored:

Under the seat.

On the seats.

In the aisles and stairwells.

Behind the seats.

23 / 40

Your bus starts to lean toward the outside on a banked curve, you are:

Driving in the mountains.

Driving with bad tires.

Driving too fast.

Driving on a wet surface.

24 / 40

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

Yellow iii indicates the highest level of radioactivity.

Black iii indicates the highest level of radioactivity.

Yellow ii indicates the highest level of radioactivity.

White i indicates the highest level of radioactivity.

25 / 40

When should you drain air tanks that do not have an automatic tank drain?

once every 14 days

at the end of each working day

once every 7 days

every 4 hours of the working shift

26 / 40

Which of these statements about speed management and braking is true?

The posted speed limit will always allow you to stop safely.

You need about four times as much stopping distance at 40 mph as at 20 mph.

The total stopping distance of a bus is the distance it takes to stop once the brakes are applied.

Stopping time increases by one second for each 10 mph over 20 mph.

27 / 40

Your bus is disabled. With riders aboard, the bus may be towed or pushed to a safe place only:

By a 27,000 lbs gvwr or larger tow truck.

If getting off the bus would be more risky for the riders.

By another bus with its four-way flashers on.

If the distance is less than 500 yards.

28 / 40

Signs of distracted drivers include:

drivers having conversations with passengers

vehicles exiting the roadway

individuals listening to music too loudly

individuals driving at a consistent speed above the speed limit

29 / 40

Select the true statement about emergency brakes:

all of these answers are correct

they are required to be held on by a mechanical force

they are required to be activated the loss of air pressure

they are required on all commercial vehicles

30 / 40

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

To make sure the electrical connections are good.

To make sure that uncoupling easier.

To decease heat and noise.

To prevent any steering problems.

31 / 40

You should____in order to inspect the coupling.

make sure to have space between the lower and upper fifth wheel

if necessary, use a flashlight

have the fifth wheel jaws open

make sure the locking lever is in the open position

32 / 40

What is a passive railway crossing?

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.

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

The type of crossing with no cross buck sign.

33 / 40

Students exit the bus and walk:

The distance it takes to clear the danger zone.

At least 8 feet away from the side of the bus.

At least 10 feet away from the side of the bus.

Across the street.

34 / 40

Your rig should be parked on__to uncouple double trailers.

a downgrade

level ground

grass

the company's lot

35 / 40

How should the hand valve be used?

only when accompanied by the foot brake

only when accompanied by the service brakes

to test the trailer brakes

only when the trailer is loaded to its maximum weight

36 / 40

If you double your speed, what will happen to your stopping distance?

it increases by four times

it stays about the same

none of these answers are correct answers are correct

it increases by two times

37 / 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 wheels follow the front wheels in a straight path

the rear part of the trailer goes into the shoulder

38 / 40

Select the factor that has no effect on how much liquid you can carry:

The legal amount of weight you can carry of any particular liquid.

The density of the liquid.

How much the liquid will expand in transport.

The liquid's weight.

39 / 40

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

you will have more space to maneuver in the lot

damage could occur to the landing gear

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

the process will be faster and easier

40 / 40

Class A explosives must not be transported in a combination vehicle if the vehicle includes:

A placarded cargo tank.

Two or more trailers.

None of these answers are correct.

A 200 inch wheelbase trailer.

Your score is

The average score is 0%

5/5 - (3 votes)

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CDL Practice Test

How To Get A louisiana Commercial Drivers License

Applicants looking to obtain their CDL for interstate driving and any Hazardous Materials Endorsement must be 21 years of age or older. Those who are 18 years of age, but under the age of 21 may apply for an intrastate CDL. These individuals are not able to operate doubles, triples, loaded buses, or HazMat vehicles. All applicants must have a completed Form DPSMV2219 from their medical examiner to apply for their CDL.

There are certain situations in which an individual will automatically be disqualified from receiving their CDL. These are listed below.

Having CDL privileges in another state disqualified.
Being convicted of driving impaired in a commercial vehicles 24 months prior to the application.
Having more than one driver’s license.
Having a denied, canceled, revoked, or suspended driver’s license.

All commercial driver’s license applicants must pass a practical skills CDL test and one or more knowledge tests.

Endorsements
T – Double/Triple Trailers
P – Passenger
N – Tank Vehicles
H – Hazardous Materials
X – Combination Tank Vehicles and Hazardous Materials
M – Motorcycle
S – School Bus

Hit the Open Road

louisiana CDL License Test Tips

Each applicant will be required to successfully pass one or more knowledge tests in order to move onto the practical skills test to receive their CDL. A passing score must be received for each test taken and is considered at 80 percent or higher. General knowledge tests are 50 to 70 questions in length and are required when applying for any Louisiana Class CDL. Those looking to have endorsements on their CDL will need to pass one additional knowledge test per endorsement.

Each applicant, regardless of Class, is required to pass a three-part practical skills test. This includes a pre-trip vehicle inspection, basic control skills, and an on-road driving test. This test ensures that the applicant is able to inspect a vehicle for safety, operate the vehicle, and can handle the vehicle with different road situations.

Additional Information

Information on the Louisiana Office of Motor Vehicles (OMV)

The Louisiana Office of Motor Vehicles Public Safety Services regulates CDL requirements in Louisiana. To get more information contact them via:

Website: http://dpsweb.dps.louisiana.gov/

Phone: 888.214.5367

Additional Louisiana CDL Helpful Links

Please use the links below to access more valuable Louisiana CDL testing resources and to learn more about practice driving tests for the state of Louisiana.

louisiana CDL Practice Test