CDL Knowledge Test Sections

Select a section to start practicing. Each section requires 80% to pass.

General Knowledge

Core CDL knowledge required for all license classes. Covers basic vehicle operation, safety regulations, and driving procedures.

50 questions

ListenPass: 80%

Required if your vehicle has air brakes. Covers inspection, operation, and safe use of air brake systems.

25 questions

ListenPass: 80%

Required for Class A CDL. Covers coupling/uncoupling, weight limits, and handling combination vehicles.

20 questions

ListenPass: 80%

Required for HazMat (H) endorsement. Covers placarding, handling, and federal regulations for dangerous goods.

30 questions

ListenPass: 80%

Required for Doubles/Triples (T) endorsement. Covers coupling, uncoupling, and special driving considerations.

20 questions

ListenPass: 80%

Required for Tank (N) endorsement. Covers liquid surge, inspection, and safe operation of tank vehicles.

20 questions

ListenPass: 80%

Required for Passenger (P) endorsement. Covers loading, safety announcements, and emergency procedures.

20 questions

ListenPass: 80%

Required for School Bus (S) endorsement. Covers student safety, railroad crossing procedures, and emergency evacuation.

20 questions

ListenPass: 80%

Learn the systematic pre-trip inspection procedure required before every CDL driving shift.

10 questions

ListenPass: 80%

Take a quick 5-question General Knowledge preview to get a feel for the exam.

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