CDL (Commercial Driver)
CDL General Knowledge Practice Test 8
Free — no payment neededLevel: Mixed
20 original CDL General Knowledge questions based on the federal motor carrier safety rules (49 CFR). Practice test, not affiliated with any government agency.
Created by AI
Practice test, not affiliated with any government agency. Original questions written from public sources, checked by a second AI reviewer and automated checks. Rules change; confirm with the official handbook. Available in 2 languages (translations are machine-made and checked automatically).
Before you start
- Questions
- 20 multiple-choice questions, one at a time
- Time
- About 12 minutes. Untimed — take as long as you need.
- Pass mark
- 16 out of 20 correct (80%)
- Feedback
- Your score, the correct answers and short explanations when you finish
- Account
- Not needed. Your answers stay in this browser.
What this test covers
Hours of serviceVehicle inspectionAccident proceduresAlcohol drugs and fitnessDriver qualification and disqualificationSeeing and communicating
Preview the first question
A driver-salesperson drives no more than 40 hours in 7 consecutive days. What does the rule say?
- The driver must keep a log entry for every hour of driving
- The driver need not rest at all
- The driver may drive unlimited hours each day without any rest
- The 60/70-hour limit rule does not apply to that driver
Answers are revealed on the results page after you finish.