CDL (Commercial Driver)
CDL General Knowledge Practice Test 14
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
Driver qualification and disqualificationHours of serviceVehicle inspectionRailroad crossingsAlcohol drugs and fitnessSeeing and communicating
Preview the first question
A new employee is assigned by the carrier to ride in a company truck for training. What is required for this ride?
- Approval from a state inspector before the first training trip
- Written authorization naming the employee and the dates for each trip
- A signed waiver from the employee
- No written authorization, since assigned employees are exempt
Answers are revealed on the results page after you finish.