CDL (Commercial Driver)
CDL Combination Vehicles Practice Test 12
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
Large diameter single or double log loads must be kept from shifting by using what?
- Chock blocks or an equivalent means
- Only a single light strap over the top
- A sided container
- Spacers as wide as they are tall placed under the load
Answers are revealed on the results page after you finish.