CDL (Commercial Driver)
CDL Hazardous Materials (H) Practice Test 4
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 segregationMarking labeling placardingHazmat driving and parkingBulk packaging and tanksHazmat classes and shipping papersEmergency response
Preview the first question
A vehicle carrying Class 1 explosives needs which kind of cargo area?
- An open body with no cover
- A body fully lined with iron
- A closed body or one covered with a tarpaulin
- Any body if the load is under 100 pounds
Answers are revealed on the results page after you finish.