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  • Updated for December 2024
  • Based on 2024 OH commercial driver's license manual

Free Ohio CDL HazMat Practice Test 2024

Ohio is a state filled with industry and innovation that appreciates talented and flexible commercial vehicle drivers, so today, you will be one step closer to becoming one of these more flexible drivers as you practice for your Hazardous Materials (HazMat) endorsement exam. This endorsement will allow you to carry more sensitive and dangerous cargo for household and commercial needs and is required in many job listings, giving you greater driving flexibility. This multiple-choice question test is unique for a few reasons that will help you be best prepared for your upcoming exam. First, the 30 questions were designed by our writers based on both information and key review questions from the HazMat section of the Ohio Commercial Driver License Handbook. Second, each question includes a hint, if needed, and an explanation that will deepen your understanding and help you answer future questions correctly when it matters most: on exam day. We recommend you study often and feel free to revisit and retake this test until you consistently achieve what would be considered a decent passing score on your real exam (80% or higher is recommended). Good luck now and on your upcoming HazMat exam, and as always, drive safely!

  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements

What you need to know

7 min to complete
Available in EN and ES
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.

What to expect on the actual OH BMV exam

30

questions

24

correct answers to pass

80%

passing score

List of questions (classic view)

  1. A safe haven is
  2. What are the major differences between cargo tanks and portable tanks?
  3. You must NEVER smoke or perform any activity involving fire within 25 feet of
  4. Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
  5. Which of the following materials are acceptable floor liners for transporting Division 1.1 or 1.2 materials?
  6. If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at a dock to carry 100 cartons of battery acid?
  7. If you are carrying Division 1.2 or 1.3 materials, how far away must you park from a bridge, tunnel, or building?
  8. Which of the following is NOT an acceptable type of marking for hazardous materials?
  9. Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
  10. Cargo tanks are
  11. Which of the following are necessary qualifications for non-bulk packaging?
  12. To determine if you need to use placards, which of the following is NOT something you need to know?
  13. What is the purpose of a driver placarding his or her vehicle?
  14. What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
  15. In what location must you keep your shipping papers that describe any hazardous materials?
  16. Which of the following hazard classes uses a transport index to determine how much of it can be loaded on a single vehicle for transport?
  17. When shippers package the material, they are trying to
  18. How often should you check the tires on a placarded trailer that has dual tires?
  19. Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
  20. Where are the two main places that the hazardous material identification number appears?
  21. What is a technical name?
  22. Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
  23. The Emergency Response Guidebook (ERG)
  24. If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
  25. A placarded vehicle must carry a fire extinguisher with a minimum rating of
  26. Does the official state CDL manual contain everything you need to know to transport hazardous materials?
  27. The hazardous material identification numbers must be displayed on portable tanks, cargo tanks, and other bulk packaging. The regulations require black _______ numbers.
  28. If an "X" or an "RQ" is in the HM column of a shipping paper entry, then
  29. Division 1.1 or 1.2 explosives must not be transported in a combination vehicle if the vehicle includes
  30. A vehicle contains 500 pounds each of Division 1.1 explosives and Division 1.2 explosives. You must have
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