CDL (Commercial Driver)
CDL Combination Vehicles Practice Test 4
Free — no payment neededLevel: Mixed
20 original CDL Combination Vehicles 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.
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
Inspecting combinationsDriving combinations
Preview the first question
When must edge protection be used with a tiedown?
- Whenever the vehicle is driven at night
- Only for steel strapping
- When the tiedown could be rubbed or cut where it touches the cargo
- Whenever the cargo weighs over 1,100 pounds
Answers are revealed on the results page after you finish.