louisiana
CDL Practice Test

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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

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

2 / 40

If you are hauling hazardous materials and have ___ tires on your vehicle, you must stop and check them every time you park.

3 / 40

Select which vehicles are required to have a low air pressure warning signal:

4 / 40

The emergency air line is _____and the service air line is____.

5 / 40

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

6 / 40

Select the item that is not checked in the engine compartment:

7 / 40

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

8 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

9 / 40

What is the value of the overhead rear-view mirror inside of the bus?

10 / 40

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

11 / 40

You should check your mirrors while making a lane change:

12 / 40

You can be sure air is supplied to the second trailer by:

13 / 40

When inspecting your bus, you must make sure that:

14 / 40

The minimum tread depth for tires other than the front tires is ____.

15 / 40

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

16 / 40

Which of the following statements is FALSE:

17 / 40

Of the following hazardous material classes, which is the most dangerous?

18 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

19 / 40

The basic description of a hazardous material includes the hazard class, the identification number, and the proper shipping name. Which one must appear first on the shipping paper?

20 / 40

Do not tow or push a disabled bus with riders aboard the vehicle, unless:

21 / 40

Select the true statement about emergency steering and tankers:

22 / 40

Unless you_____you will feel the effects of a liquid surge.

23 / 40

If you have to swerve to avoid a hazard, it's important to:

24 / 40

The correct trailer height when coupling the rear trailer is:

25 / 40

Five hazard classes that require placarding in any amount are ______.

26 / 40

Select the true statement in regards to an application pressure gauge:

27 / 40

It is important for driving safety to always be looking ahead. Which of the following is NOT a recommended time/distance that you should be looking ahead?

28 / 40

In the slide mechanism of the sliding fifth wheel, this object should have no missing pins or be loose when fully engaged.

29 / 40

While completing the 3rd component of the air brake check of a combination vehicle, at what psi should the tracor protection valve and parking brake valve should pop out?

30 / 40

At what pressure is the safety valve in the air compressor tank set to open?

31 / 40

Select the true statement about tractor protection valve:

32 / 40

The trailer should be lowered so that _____.

33 / 40

What is the movement of the liquid called when the tanks are partially filled?

34 / 40

Take extra caution when driving smooth bore tanks during:

35 / 40

Select the portion of the combination vehicle that is most likely to turn over suddenly when pulling a double trailer:

36 / 40

Which of the following will confirm that you are driving with anti-lock brakes?

37 / 40

Bus drivers must have a commercial driver license if they drive a vehicle designed to seat more than:

38 / 40

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

39 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

40 / 40

Which of the following statements about bus evacuation is true?

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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.