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

Play of the steering wheel should not exceed:

5 degrees

15 degrees

10 degrees

30 degrees

2 / 40

You need to be extra careful when driving smooth bore tanks:

All answers listed.

When hauling food or milk products.

When stopping or starting.

When unloading or loading.

3 / 40

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

For hazards not described in the hazmat manual

Always

During an emergency

Never

4 / 40

If hazardous material is spilling from your vehicle, do not move your vehicle:

Any more than safety required.

Any more than 500 feet.

In an upwind direction.

Any more that 450 feet.

5 / 40

The best way to describe a dual air brake system is:

all of these answers are correct

there are 2 separate air brake systems that have their own hoses, lines etc

there is a primary and secondary system that is 2 separate air brake systems

there are 2 separate air brake systems that supply air to the trailer if there is one

6 / 40

This item does not need to be checked during the cab check.

The horn

The air conditioning

The windshield wipers and fluid levels

The defroster/heater

7 / 40

A safe haven is:

A place that has been approved to park unattended vehicles carrying explosives.

A place where it is safe to dump any kind of hazardous materials.

The slang term for the last stop at the end of your driving day when carrying hazardous materials.

A place to stay once you have reported your company for illegal activity.

8 / 40

What does the service brake system do?

they are valves that maintain air tank pressure

they are only on vehicles that have hydraulic brakes

they are part of an official vehicle inspection

under normal driving it applies and releases the brakes by using the brake pedal

9 / 40

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

10 / 40

Select the true statement about empty trucks:

they have poor traction due to wheel lockup and bouncing

they have a smaller stopping distance than full trailers

empty trucks stop in the same distance as a fully loaded truck

empty trailers are easier to stop because there is not cargo shifting

11 / 40

What is the purpose of a baffle?

It controls the surge of liquid forward and backwards.

It makes it easier to clean the tanker out.

It allows you to haul loads that are mixed.

It stops side to side surging.

12 / 40

A tractor should not be backed under a trailer until the whole air system is:

at half of its normal pressure

at a normal pressure

at a level of 50 and 70 psi

at a level of 70 and 90 psi

13 / 40

A placarded vehicle must have at least ___ placards?

four

six

three

two

14 / 40

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

By another bus with its four-way flashers on.

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

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

If the distance is less than 500 yards.

15 / 40

What color are all school buses painted?

Orange yellow.

National school bus yellow.

The individual district decides the exact color.

Florescent yellow.

16 / 40

You should look into the back of the fifth wheel on a dolly to see if it is locked onto the kingpin.

only in a level loading dock

false

true

only at the end of a shift

17 / 40

Select the statement that is true in regards to what is required of a driver with a double or triple trailers:

all of the answers listed

increase your following distance

none of the answers listed

drive with extra care in mountains and in bad weather

18 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

1 psi a minute

none of the answers listed

3 psi a minute

4 psi a minute

19 / 40

When does your vehicle's single brake system need an adjustment?

if the pressure builds from 50 to 75 psi in less than 3 minutes

if the compressor cuts out at between 70 and 90 psi

when the pressure builds from 85 to 100 psi in less than 1 minute

when the governor stops between 75-90 psi

20 / 40

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

Never drive with an open emergency exit door or window.

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.

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

21 / 40

You don't want to use wheel chocks when hooking a combination to a second trailer with no spring brakes. What should you do?

supply air to the trailer air system via the tractor and then disconnect the emergency line

none of the answers listed

use a portable generator to supply brake pressure

make sure the trailer will not roll away when coupling

22 / 40

You must control how far packages labeled "Radioactive II" or "Radioactive III" are located from people and cargo space walls by referring to:

The table of hazardous materials.

The segregation and separation chart.

The transport index and the separation distances table.

The list of hazardous materials and reportable quantities.

23 / 40

To maintain alertness during the trip, drivers should:

schedule trips during the daytime hours

all of these answers are correct

get 8-9 hours of sleep

avoid medications that cause drowsiness

24 / 40

How often should you check the tires on a placarded trailer that has dual tires?

Once every three hours.

Each time you stop.

Once every 100 miles.

Start of each day and every time you stop.

25 / 40

This object should not be spliced, cut, chafed, or worn through to allow steel braid to show.

Tires

Mud flaps

The lockjaw

Electric/air lines

26 / 40

Select the correct description for a bulkhead tank.

None of the answers listed.

It is one large tank.

They are divided down into smaller tanks.

They are divided with holes to allow liquid to flow through controlling surge.

27 / 40

Make sure that____when the front trailer supports are up and the trailer is resting on the tractor.

the kingpin has been removed

there is enough clearance between the landing gear and the tractor frame

there is enough clearance between the lower and upper fifth wheel

the safety latch is in the open position

28 / 40

Your rig should be parked on__to uncouple double trailers.

grass

a downgrade

the company's lot

level ground

29 / 40

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

tanks usually do not need to be drained

to provide greater control of your vehicle

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

to prevent the left sided brake from locking up

30 / 40

What does it mean when the safety valve releases air?

pressure has passed 150 psi

there is too much air in the air compressor

all of these answers are correct

you need it to have it checked out by a mechanic because something is wrong

31 / 40

Which of the following is a necessary qualification for non-bulk packaging?

Maximum water capacity of 454 kg or less if used as a receptacle for gases.

All of these answers are necessary qualifications.

A maximum capacity of 450 l or less if it is used as a receptacle for liquids.

Maximum net mass of 400 kg, or less than 450 l if used as a receptacle for a solid.

32 / 40

How do you determine if slack adjusters need to be adjusted?

release the parking brakes and activate the service brakes

release the parking brakes and service brakes

activiate the parking brake and service brake

pull out the automatic slack adjustment control knob

33 / 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.

34 / 40

In what location must you keep your shipping papers which describe any hazardous materials?

In a fire-safe pouch under the passenger seat while you are driving.

In a locked glove compartment anytime you are outside of the vehicle.

On the driver's seat anytime you are outside of the vehicle.

In a fire-safe pouch under the driver's seat that you can reach while you are driving.

35 / 40

How do you release the dolly brakes when coupling twin trailers?

by flushing the brake line

by opening the air tank petcock

by charging the air line

by opening the shut off valve

36 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

Lug nuts

None of the answers listed

Rims

Bolt spacers

37 / 40

When conducting a pre-trip inspection, the most important item to verify is _____.

that there are no leaks in the air brake system

that the tire tread is sufficient for the expected driving conditions

that the registration is in the cup holder

that the radio transmits a signal

38 / 40

After deciding the type of evacuation that is necessary, the next step you must take is:

Opening the emergency exits.

Securing the bus.

Dangle the radio microphone out of the driver window for later use.

Notifying the dispatch office of the evacuation.

39 / 40

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

service brake system

parking brake system

clutch brake system

emergency brake system

40 / 40

Cylinders containing compressed gases may only be loaded onto a vehicle without a flat floor or platform if the cylinders are:

Loaded into racks attached to the vehicle.

Loaded in an upright or horizontal position.

All of these answers are correct.

In boxes that will keep them from turning over.

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

CDL Category Practice Tests

CDL Practice Test

How To Get A louisiana Commercial Drivers License

Hit the Open Road

louisiana CDL License Test Tips

Additional Information

Information on the Louisiana Office of Motor Vehicles (OMV)

Additional Louisiana CDL Helpful Links

louisiana
CDL Practice Test