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Iowa Hazardous Materials (Hazmat) CDL Practice Test
Free Hazardous Materials (Hazmat) practice questions tailored for Iowa CDL applicants. The questions follow FMCSA standards used by the Iowa Department of Transportation.
Why this matters in Iowa
Iowa DOT administers all CDL knowledge tests on touchscreen kiosks at driver license service centers. If you are pursuing the Hazardous Materials (Hazmat) portion of the Iowa CDL exam, the Iowa Department of Transportation will use the same federal core questions you practice here, plus any state-specific items the Iowa Department of Transportation chooses to include.
What you will learn
The Hazmat endorsement is required to transport materials in quantities requiring placards under 49 CFR 172.504. Topics include hazard classes, the Hazardous Materials Table, shipping papers, marking, labeling, placarding, segregation, loading and unloading, communication rules, emergency response, security plans, and the Transportation Security Administration (TSA) background check.
Sample questions
- Q1. The Hazardous Materials Regulations are found in:
- Q2. The Hazardous Materials Table (HMT) is found in:
- Q3. A 'placard' on a hazmat vehicle is:
- Q4. For most hazardous materials, placarding is required when:
- Q5. Some hazardous materials require placards in any quantity. These are listed in:
- Q6. The Emergency Response Guidebook (ERG) is intended for use by:
- Q7. Shipping papers for hazmat must:
- Q8. A shipping paper for hazmat must include:
- Q9. Hazmat ID numbers begin with:
- Q10. A 'segregation' rule means:
- Q11. A driver must inspect tires of a placarded hazmat vehicle:
- Q12. A hazmat driver must hold a:
- Q13. The TSA threat assessment for the hazmat endorsement is required:
- Q14. The driver must be familiar with the contents of the:
- Q15. Class 1 hazardous materials are:
- Q16. Class 2 hazardous materials are:
- Q17. Class 3 hazardous materials are:
- Q18. Class 4 hazardous materials are:
- Q19. Class 5 hazardous materials are:
- Q20. Class 6 hazardous materials are:
- Q21. Class 7 hazardous materials are:
- Q22. Class 8 hazardous materials are:
- Q23. Class 9 hazardous materials are:
- Q24. When fueling a placarded vehicle:
- Q25. Smoking is prohibited within how many feet of a placarded vehicle (with certain exceptions…
See the full Hazardous Materials (Hazmat) bank →
Iowa test logistics
The Iowa Department of Transportation charges a permit fee of $25 and a license fee of $8/year. The minimum age is 18 (intrastate) / 21 (interstate). Schedule your knowledge test through the Iowa Department of Transportation once you can score above 90% on this site's practice bank.