Free Louisiana CDL Practice Test (2026)
Practice the Louisiana CDL permit test the way it is really written, with the correct answer and an explanation on every question.
Louisiana CDL Requirements
5-Question LA Challenge
Real general knowledge questions, with the answer and an explanation after each one.
Which type of fire should you NEVER use water to extinguish?
Louisiana CDL permit test: what to expect
The written exam most people call the Louisiana CDL permit test is the general knowledge test, and passing it is what gets you a commercial learner's permit rather than the license itself. You need 80% to pass, a federal standard that is the same in every state. The number of questions is set by Louisiana, and our practice tests use the common 50-question format.
Once you hold the permit you have to keep it for at least 14 days before you are allowed to attempt the skills test, so it is worth sitting the written exam as early as you can. Practice below until you are clearing Louisiana's standard comfortably rather than scraping it.
How to get a CDL in Louisiana
To obtain a Commercial Driver's License in the Louisiana, you must first pass the General Knowledge exam. Depending on the type of vehicle you intend to drive, additional endorsements like Air Brakes, Tanker, or Hazmat may be required.
- Get a DOT medical exam, and if this is your first CDL, finish Entry-Level Driver Training (ELDT) with an FMCSA-registered provider. Louisiana requires it before you apply.
- Study the Louisiana CDL handbook and pass the knowledge tests for your class and endorsements at an OMV office. You need at least 80% to pass.
- Get your commercial learner permit (CLP) and hold it for at least 14 days before the skills test.
- Practice with a licensed CDL driver, then schedule and pass the three-part skills test: pre-trip inspection, basic control, and the road test.
- Return to the OMV to have your Louisiana commercial driver's license issued.
Official source: Louisiana Office of Motor Vehicles (OMV).
Practice every part of the Louisiana CDL test
Your Louisiana exam is split into separate knowledge tests. Drill each one until you're confident.
5 Louisiana CDL Practice Questions and Answers
Here are 5 sample Louisiana general knowledge questions with the right answer and a quick explanation for each. Read through them, then take the quiz above to see how you do without looking.
1. Which type of fire should you NEVER use water to extinguish?
- A. Wood fires
- B. Paper fires
- C. Electrical and fuel fires (correct answer)
- D. Cloth fires
Why: Water can cause burning fuel to spread and conducts electricity, which can lead to a fatal shock. Never use water on electrical or flammable liquid fires.
2. If your headlights suddenly fail at night, what is the safest immediate action?
- A. Steer off the road relying entirely on moonlight.
- B. Turn on your emergency flashers, slow down, and safely pull off the road. (correct answer)
- C. Follow closely behind another vehicle to use their lights.
- D. Use your interior dome light to see the road.
Why: Headlight failure requires you to maintain visibility to other drivers and safely stop. Turn on your four-way flashers or turn signals and carefully pull off the roadway to investigate.
3. Under normal conditions, your low beam headlights allow you to see ahead approximately how far?
- A. 250 feet (correct answer)
- B. 100 feet
- C. 500 feet
- D. 800 feet
Why: Low beam headlights illuminate the road ahead for about 250 feet, which means you must adjust your speed to be able to stop within that distance.
4. When putting tire chains on a combination vehicle, where should they be installed?
- A. On the steer tires only.
- B. On the trailer tires only.
- C. On the drive tires of the tractor. (correct answer)
- D. On the inside duals only.
Why: Tire chains should be installed on the drive tires to provide the necessary traction to move and control the vehicle in deep snow or ice.
5. Where is the best place for a helper to stand while assisting a backing maneuver?
- A. Directly behind the trailer, in the center.
- B. Near the back of the truck, where they can see the path and the driver can see them in the mirrors. (correct answer)
- C. Directly in front of the tractor to ensure the front does not swing.
- D. On the passenger side steps.
Why: The helper should stand near the back of your vehicle where they have a clear view of your intended path and are clearly visible in your mirrors.
CDL Job Market in Louisiana
Louisiana is one of the most specialized CDL markets in the country. A hazmat endorsement is worth a lot here, given all the refineries and chemical plants packed in from Baton Rouge to New Orleans. Carry both Tank and HazMat and you'll earn well above the state median. On top of that, the offshore marine support industry near Morgan City and Houma offers driving jobs you won't find outside the Gulf Coast.
Martin Transport, Turner Industries, Port of New Orleans, Clean Earth Capital
Louisiana CDL average: about $52,000 in 2026. The dense petrochemical corridor along the Mississippi River and the Port of New Orleans keep tanker and hazmat specialists in steady demand.
Louisiana CDL Test FAQs
How old do you have to be to get a CDL in Louisiana?
You can drive commercially inside Louisiana at 18. To drive across state lines or haul hazardous materials, you have to be 21.
Do I need Entry-Level Driver Training for a Louisiana CDL?
Yes. If you're getting your first CDL, upgrading your class, or adding a hazmat, school bus, or passenger endorsement, you have to finish ELDT with an FMCSA-registered provider before you apply at the OMV.
What score do I need to pass the Louisiana CDL knowledge test?
You need at least 80% on each knowledge test. Our free Louisiana CDL practice tests match the real question style so you can be sure you're ready.
How long do I have to hold my Louisiana commercial learner permit?
You must hold your CLP for at least 14 days before taking the skills test. That waiting period is a federal rule Louisiana follows.
Is the Louisiana general knowledge test the same for every class?
Yes. The general knowledge test is the same whether you're going for Class A, B, or C, and it follows the standard 50-question format. Endorsements like tanker and hazmat add their own separate tests.