CDL & Commercial Driving
CDL Practice Tests
Workable practice exams for the Class A permit and every endorsement — 446 questions in all. Pick a test, choose how many questions, and check your score with the correct answer, an explanation, and the manual citation for every question. Questions and answer choices reshuffle on each retake.
New to the CDL? Start with the permit & endorsements guide →Class A permit (CLP) — core knowledge tests
General Knowledge
The core Class A CLP knowledge test - inspection, control, space, speed, and hazards.
Air Brakes
Remove the air-brake restriction - system parts, warnings, and the brake checks.
Combination Vehicles
For Class A - coupling, air lines, rollover, and jackknife.
Endorsements
Hazardous Materials (H)
Placards, hazard classes, shipping papers, and security (needs a TSA check).
Tanker (N)
Liquid surge, outage, baffles, and the high center of gravity.
Doubles & Triples (T)
Coupling order, the converter dolly, and crack-the-whip.
Passenger (P)
Bus pre-trip, standee line, railroad crossings, and emergencies.
School Bus (S)
Danger zones, loading/unloading, and student safety.
Skills test
Practice questions are study aids written from the AAMVA-based CDL manual; always confirm details against your state CDL manual and the official knowledge test. The endorsement and skills requirements are summarized in the permit & endorsements guide.