FREE CDL General Knowledge Practice Test 2026

The General Knowledge test is required for every CDL applicant regardless of class or endorsement. It covers vehicle inspection, basic control, shifting, communicating, space management, seeing hazards, and emergency procedures.

25 questions80% to passExplanations includedRequired for all CDL

Question 1 of 25

When should you use your four-way emergency flashers?

Tip: Press 1-4 to select, Enter to submit

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