Free CDL Endorsement Practice Tests 2026
HazMat, air brakes, combination, tank and passenger. 200 questions from the FMCSA manual. No account needed.
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The CDL Endorsements exam at a glance
Each CDL endorsement has its own knowledge test, and each needs 80% to pass. The HazMat (H) test has 30 questions in most states and also requires a TSA security threat assessment; the air brakes test has 25 questions and removes the L restriction. Combination vehicles is required for a Class A license.
Tigertest has 200 CDL Endorsements practice questions with explanations, all free with no account required.
- Tests
- HazMat, air brakes, combination, tank (N), passenger (P)
- HazMat questions
- 30 in most states
- Air brakes questions
- 25
- Passing score
- 80% on each test
- Where
- Your state's driver licensing office
Updated by the Tigertest team. Practice questions follow FMCSA CDL manual sections 4, 5, 6, 8 and 9. Exam rules change, so confirm current details with FMCSA.
How It Works
One Training Set per Endorsement
Adding HazMat? Train only the HazMat set. Each set is one section of the FMCSA manual, and questions you miss come back until you have mastered them.
Mixed Practice Tests
Four 50-question tests across all five endorsements at the 80 percent pass line every endorsement test uses. Good for Class A drivers stacking several at once.
Five Tests, Straight from the FMCSA Manual
Every state CDL handbook reprints the FMCSA model manual. These sets follow its endorsement sections, with the real test length and pass mark for each.
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Share FeedbackHow to Pass Your CDL Endorsement Tests
1. Know which tests you need
Combination vehicles is required for Class A. Air brakes is not an endorsement but skipping it puts an L restriction on your license. Tank (N), passenger (P) and hazardous materials (H) are endorsements you add for the cargo or vehicle you drive; X combines tank and HazMat.
2. Learn the numbers
Endorsement tests lean on figures: 125 psi governor cut-out, 60 psi low-air warning, placards at 1,001 pounds, 1,000-gallon tanks, 16 passengers, 300 feet from explosives parking, 15 to 50 feet at railroad crossings. The training sets drill every one.
3. HazMat has an extra step
Passing the knowledge test is not enough for the H endorsement. You also need a TSA security threat assessment with fingerprints, which can take several weeks, so start it before your test date.
4. Drill your weak areas
Tigertest tracks your accuracy by endorsement. After a mixed test, go back to the set you missed most and retake until you clear 80 percent.
CDL Endorsement Test Frequently Asked Questions
How many questions are on the CDL HazMat test?
The hazardous materials endorsement knowledge test has 30 questions in most states, and you need 80 percent (24 correct) to pass. You also need a TSA security threat assessment with fingerprinting before the H endorsement is added.
Is air brakes an endorsement?
No, it is a restriction. Skip the air brakes knowledge test, or take your skills test in a vehicle without air brakes, and your CDL carries an L restriction that bars you from air-brake vehicles. The knowledge test has 25 questions and needs 80 percent.
Which endorsement tests do I need?
Combination vehicles for Class A. Tank (N) for liquid or gas cargo in tanks of 1,000 gallons or more. Passenger (P) for vehicles designed for 16 or more including the driver. Hazardous materials (H) for placarded loads; X combines N and H. Each test needs 80 percent.
Is the Tigertest endorsement practice free?
Yes. All five training sets and all four mixed practice tests are free, with no account required. Create a free account if you want your progress saved across devices.
I teach CDL endorsement classes. Can my students use Tigertest?
Yes, for free. Make a class at tigertest.io/teach, post one link, and students join with just their name. You see who practiced, their test scores and the topics your class misses most.
Related practice tests
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