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

With Division 1.2 or 1.3 Explosive B, how close to the travelled part of the roadway can you park?

Minimum of 5 feet

Minimum of 10 feet

Minimum of 2 feet

Minimum of 15 feet

2 / 40

Why should you use chocks when parking a trailer without spring brakes?

the trailer wheels are free to turn as there will be no emergency brakes should the air supply in the trailer air tank leak

the trailer wheels are free to turn as there will be no service brakes should the air supply in the trailer air tank leak

to prevent a runaway trailer

to prevent someone from stealing the vehicle

3 / 40

Select the true statement in regards to large combination vehicles taking longer to stop.

they take longer to stop than bobtail tractors

they take longer to stop when loaded down

they take the same amount of time to stop when empty or loaded

they take longer to stop when they are empty

4 / 40

How many seats may be placed in the aisle if the bus is a charter and is carrying agricultural (farm) workers?

5 / 40

If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?

At least twenty feet

At least five feet

At least half a mile

At least ten feet

6 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

drive at a speed of 5 mph below your safe speed

use countersteering practices

use the trailer brakes only

use the stab braking method

7 / 40

How should you inspect a converter dolly?

as if it is a trailer

as if it is cargo

as if it is an engine

as if it is an axle with a fifth wheel

8 / 40

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

175 psi

125 psi

100 psi

225 psi

9 / 40

Why is understanding the loading and unloading procedures so critical?

Because motorists ignore students walking to school.

Because many students are killed while getting on and off a school bus each year.

Because only high school students understand how to cross the road.

Because school district officials have the authority to conduct surprise quizzes and you must know the correct answers to keep your job.

10 / 40

The belt that you need to make sure is securely mounted, without frays, and adjusts and latches properly is the:

The power steering belt

The water pump belt

The seat/safety belt

The air compressor belt

11 / 40

You downshift automatic transmissions ______.

none of these answers are correct

before going down a hill

half way down a hill

at the bottom of a hill

12 / 40

When checking for_____you are looking for dripping fluids or puddles on the ground below the transmission or engine.

leaks

coolant level

air brake system

power steering fluid

13 / 40

Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?

Classes 1, 3, and 4

Classes 1, 3, and 6

Classes 1, 21, and 3

Classes 1, 4, and 51

14 / 40

What handling effect will baffles have?

There will be less of surging front to back.

There will be an increase in slow surge.

There will be less side to side surging.

None of the answers listed.

15 / 40

The walls that separate compartments inside the tanks and having openings at the top and bottom are called:

Layers

Baffles

Free walls

Bulktears

16 / 40

Where is compressed air stored?

in the compartment for the engine

in the gasoline tank

in the storage tank

in the hose lines

17 / 40

A truck with baffles will handle:

Heavier that it actually is.

The same as a tanker with no baffles.

None of the answers listed.

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

18 / 40

This object is not checked at the rear of the trailer.

The mud flaps

The header board

The back doors

The bumper

19 / 40

What is the purpose of a driver placarding his or her vehicle?

Warning those with children to drive in another lane.

Communicating risk.

Forcing other drivers to stay 20 feet away in every direction.

Giving people something interesting to look at while driving.

20 / 40

You should_____when the low pressure warning is activated:

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

wait until the air brakes kick in automatically

pump the brake pedal to come to a stop immediately

21 / 40

Should your air compressor stop working:

there will still be air pressure left in the air tanks

there will be no affect to your brakes

you will lose your ability to brake immediately

the brakes will lock up on you immediately

22 / 40

When is it acceptable for non-hazardous materials to be described by hazard class words or identification numbers?

During an emergency

For hazards not described in the hazmat manual

Never

Always

23 / 40

What is a common cause of tire fires?

overinflated tires

cold tires

all of these answers are correct

underinflated tires

24 / 40

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

The distrubition of weight.

The level of the fluid.

All answers listed.

The high center of gravity.

25 / 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 drive at a higher speed to keep the trailer in line

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

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

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

26 / 40

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

Open and inspect every package and container.

Ask the driver.

Check for a fence around the loading dock.

Look at the shipping papers.

27 / 40

Select the statement that is not part of the air-brake system:

service brake system

emergency brake system

parking brake system

clutch brake system

28 / 40

What does the air compressor governor control?

when air is pumped into the air tanks

when the air is taken out of the hoses

when the valve system releases pressure

when air pressure is applied to the brakes

29 / 40

Wet brakes can cause _____.

pulling to one side or the other

brakes to apply unevenly

lack of braking power

all of these answers are correct

30 / 40

At the end of each shift you should:

Report any defects.

Inspect your bus.

All of these answers are correct.

Report any damage.

31 / 40

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

signal just before you start to make a turn

signal before you exit

signal when you want to change lanes

signal when you are merging into traffic

32 / 40

You should_____when an emergency requires you to quickly stop your tanker.

use stab or controlled braking

turn off the abs and brace for impact

use the emergency brakes only

keep a firm pressure on the brake pedal

33 / 40

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

false

only on downgrades

true

only in ideal conditions

34 / 40

You should brake on a long steep downgrade hill as a supplement to the braking effects of the engine

when the GVCW is above 20,000 lbs

when the vehicle is runaway

yes

35 / 40

What is a technical name?

The name for a hazardous material most commonly used in the trucking community, accepted as standard.

The name for a hazardous material used in scientific journals and texts, recognized as its chemical and microbiological name.

The name for a hazardous material most commonly used on the street.

The medical term for hazardous materials used by medical personnel.

36 / 40

Overhead inside mirror is used to:

See all of the students.

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.

37 / 40

Signs of distracted drivers include:

individuals listening to music too loudly

drivers having conversations with passengers

vehicles exiting the roadway

individuals driving at a consistent speed above the speed limit

38 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

A gas mask.

The written route plan.

The carrier's insurance policy.

None of these answers are correct.

39 / 40

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

when the tractor brakes lock up

when the tractor spins around

when the trailer pushes the towed vehicle sideways

when the trailer slides to the right into the shoulder

40 / 40

A driver of a tank vehicle should take curves, off ramps, and on ramps at a speed lower than the posted speed limit.

False

True but only in ideal conditions

True

True but only in rainy conditions

Your score is

The average score is 0%

5/5 - (3 votes)

CDL Category Practice Tests

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