Louisiana CDL practice test

Getting a commercial driver's licence in Louisiana starts with the CDL knowledge tests. The content is federal: every state, Louisiana included, writes its tests from the FMCSA CDL manual, so the general knowledge test has 50 questions, the endorsement tests have 20 to 30, and the passing score is 80% on each. Louisiana Office of Motor Vehicles administers the test; the rules behind it are published by the FMCSA. Try the free Louisiana CDL practice questions below, then pick a full test.

50general knowledge questions
80%passing score on every test
8knowledge tests covered
LApick your state once in the app

Free Louisiana CDL practice quiz

Five questions from the general knowledge, air brakes and combination vehicles banks, the three tests most Louisiana Class A applicants take first. Tap an answer to see if you were right and read the explanation.

0 of 5 right0 of 5 answered

What is the best advice for driving in heavy fog?
Before driving in winter weather, why should you check that the radiator shutters and winterfront are not blocked with ice?
On slippery roads, how should you turn and brake?
Before driving through deep water or a flooded area, you should:
After driving through water, how do you dry out wet brakes?

Every CDL test for Louisiana drivers

Each page has a free ten-question quiz, the real question count, the 80% pass mark and what the test covers.

How the Louisiana CDL knowledge test works

You take the general knowledge test first; it is required for every CDL class. Class A drivers add the combination vehicles test. Almost everyone takes the air brakes test, because skipping it puts an air brake restriction on the licence. Endorsements (hazmat, tanker, doubles/triples, passenger, school bus) each have their own knowledge test. Pass the tests and you hold a commercial learner's permit; the skills test in a truck comes later.

Fees, appointment rules and test centre locations are set by Louisiana; the current ones from Louisiana OMV are in the next section. What does not change is the content, and that is what PassRig drills.

Louisiana CDL fees and rules

In Louisiana the CDL is issued by the Louisiana Office of Motor Vehicles. The figures below are taken from its own pages and were last checked on 2 November 2026. Fees and rules change, so confirm with the agency before you go.

Study from the state's own book: Louisiana CDL Manual. PassRig's questions are written from the same FMCSA manual it is based on.

What	LA	Source
CDL fee	$61.50 ($76.50 in Orleans Parish) plus $15.00 application fee	expresslane.la.gov
Permit valid for	Up to 180 days, with an option to extend for another 180 days	expresslane.la.gov
Minimum age	18 or older	expresslane.la.gov
Test languages	No translator allowed for the CDL knowledge test (allowed for other licence classes)	expresslane.la.gov
Medical certificate	Physical must be done by a medical examiner on the National Registry	expresslane.la.gov
Entry-level driver training	ELDT training may be required before taking the skills test	expresslane.la.gov
Also worth knowing	Third-party skills test costs $100 if you provide the vehicle	expresslane.la.gov

3 official pages from Louisiana OMV were read for this section. Nothing on it is estimated.

Louisiana CDL test questions

How many questions are on the Louisiana CDL test?

The Louisiana CDL general knowledge test follows the federal model: 50 questions, 40 correct to pass. Endorsement tests are shorter: air brakes 25, hazmat 30, and combination vehicles, tanker, doubles/triples, passenger and school bus 20 each.

What is the passing score on the Louisiana CDL permit test?

80% on every knowledge test, the same pass mark used across the United States.

Where do I take the CDL knowledge test in Louisiana?

Louisiana Office of Motor Vehicles gives the test. Check its website for locations and appointments. The test content itself comes from the FMCSA CDL manual.

Does PassRig have Louisiana CDL practice questions?

Yes. Pick Louisiana in the app and you get practice sets and mock exams built from the knowledge test content your state uses, with the real counts and the 80% line.