Free CDL practice tests
One free test for every CDL knowledge test, from the permit test to HazMat. Real questions from the same bank our students use, no account and no email needed, and the correct answer after every question.
About these free CDL practice tests
Eight separate written tests stand between a new driver and a CDL, and which of them you sit is decided by the vehicle you will drive and what it carries. Every one of the eight has a free test here. Start with the permit test if you are new to this, or go straight to the one you are booked for.
Choose your test
Each one is a separate exam at your state licensing agency, and each needs 80% to pass.
CDL Permit Practice Test
10 free questions
Build the foundation for CDL rules, safe driving, emergency procedures, cargo basics.
Start the free test →CDL Air Brakes Practice Test
7 free questions
Study air brake systems, inspections, pressure checks, and safe braking procedures.
Start the free test →CDL Combination Vehicles Practice Test
8 free questions
Prepare for tractor-trailers and other combination vehicles.
Start the free test →CDL HazMat Practice Test
6 free questions
Prepare for HazMat responsibilities, placarding, shipping papers, safe handling.
Start the free test →CDL Tanker Practice Test
6 free questions
Learn how liquid or gaseous cargo affects braking, turning, stability, and inspections.
Start the free test →CDL Passenger Practice Test
6 free questions
Review passenger safety, loading rules, emergency procedures, and safe operation.
Start the free test →CDL School Bus Practice Test
8 free questions
Study school bus procedures, student safety, stop laws, crossings, and evacuation planning.
Start the free test →CDL Doubles & Triples Practice Test
6 free questions
Study multiple-trailer operation, inspections, stability, coupling, and safe following distance.
Start the free test →Why take a practice test first
A CDL is what lets you drive a commercial vehicle for a living, and the knowledge tests are the first gate. You sit them at your state licensing agency, the questions come from your state's CDL manual, and you need 80% to pass. A practice test tells you where you actually stand before you book, which matters because several states charge for a retake. You can see what your state charges for the permit, the license and the tests themselves.
Which CDL you need, and which tests go with it
Not every driver sits every test. The class follows from the vehicle: Class A for combination vehicles, Class B for a single heavy vehicle, Class C where the vehicle is under those weights but carries passengers, school students or placarded hazardous materials. Endorsements are added on top of a class, and there are six: H for hazardous materials, N for tank vehicles, P for passengers, S for school bus, T for doubles and triples, and X for hazmat and tank together.
Two of the tests here are neither. Air Brakes is a restriction removal, so passing it means your license is issued without the bar on air-braked vehicles, and Combination Vehicles is a core knowledge test for Class A rather than an add-on.
If you are not certain which applies to you, working through a test or two is a quick way to see what the material actually asks. The CDL Selector will narrow the class and endorsements from a few questions about the vehicle and the work, and the class breakdown and endorsement list cover what each one allows.
Who these are for
- Anyone working toward a first CDL who wants to know what the written test is like.
- Drivers adding an endorsement to a license they already hold.
- Class B holders upgrading to Class A.
- Drivers coming back after time away who want to see what they still remember.
Why these tests are free
No account, no email and no payment, because the point is to show you where you stand before you spend anything. Each one is a sample of a much larger bank. What you pay for is the rest: the complete question bank for each test, the official manual rebuilt section by section with its diagrams, quick reviews of what the test actually asks about, and narrated audio. You pay once, no subscription.
Requirements around the permit differ by state: how long you must hold it before the skills test, how long it stays valid, and what you bring to the office. Check your own agency's CDL page for the details that apply to you.
Where to go next
Work out which license class you need, then study the test that goes with it:
- CDL classes: what Class A, B and C each let you drive.
- CDL endorsements: H, N, P, S, T and X, and who needs each.
- What CDL do I need, by vehicle: the class and the tests for a dump truck, box truck, school bus, tanker and more.
- CDL study material: the full study guides, practice tests and narrated audio.
Common questions
Which CDL practice tests do I need to take?
It follows from the vehicle you will drive. Everyone takes General Knowledge, the test that earns your commercial learner's permit. Class A drivers add Combination Vehicles, anything with air brakes adds the air brake test, and endorsements (H, N, P, S, T and X) each add their own. If you are not sure, the CDL Selector narrows it down from a few questions about the vehicle and the work.
Do I need an account to take these?
No. Every test on this page runs without an account, an email address or a payment. You get your score and the correct answers at the end, with the CDL manual section behind each question you missed.
Are these the real CDL exam questions?
No. They are real questions from the same banks our paid study material uses, written from the CDL manual your state tests you on, so the style and difficulty match. The exam itself is set by your state licensing agency and is longer than any of these samples.
How many questions is each free test?
It varies by test, and each card above shows its own count. They are a sample rather than a full exam: enough to show you where you stand and which manual sections to go back to, not the length of the real thing.