CDL (Commercial Driver)
CDL Hazardous Materials (H) Practice Test 9
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
Loading and segregationHazmat driving and parkingMarking labeling placardingBulk packaging and tanksHazmat classes and shipping papersEmergency response
Preview the first question
A vehicle has both Division 1.1 and Division 1.2 explosives, so more than one Class 1 division placard is needed. What must be displayed?
- Only the placard with the lowest division number
- Only the placard with the highest division number
- A POISON placard instead
- Both placards on opposite sides
Answers are revealed on the results page after you finish.