CDL (Commercial Driver)
CDL Hazardous Materials (H) Practice Test 6
Free — no payment neededLevel: Mixed
20 original CDL Hazardous Materials (H) 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
Marking labeling placardingHazmat classes and shipping papersHazmat driving and parkingBulk packaging and tanksLoading and segregationEmergency response
Preview the first question
What colors may be used for package orientation arrows?
- Any color on a clear background
- Green or blue on a black background
- Black or red on a white or contrasting background
- Yellow on an orange background
Answers are revealed on the results page after you finish.