CDL (Commercial Driver)
CDL Hazardous Materials (H) Practice Test 7
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.
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 driving and parkingHazmat classes and shipping papersBulk packaging and tanksEmergency responseLoading and segregation
Preview the first question
Which of these is exempt from the placarding subpart?
- Combustible liquids in cargo tanks
- Poison gas in cylinders
- Combustible liquids in non-bulk packagings
- Explosives in boxes
Answers are revealed on the results page after you finish.