CDL (Commercial Driver)
CDL General Knowledge Practice Test 31
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 serviceSeeing and communicatingVehicle inspectionAccident proceduresAlcohol drugs and fitnessRailroad crossings
Preview the first question
A driver hauling goods to a film set works within 100 air miles of the normal work-reporting location. If the driver goes beyond that distance, what happens?
- The driver must follow the regular property-carrying rules
- The driver is exempt from all limits
- The film-site exemption still applies for the rest of that day
- The driver only needs a 30-minute break before continuing
Answers are revealed on the results page after you finish.