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  • Updated for October 2024
  • Based on 2024 MO commercial driver's license manual

Free Missouri CDL HazMat Practice Test 2024 | MO

Today, you will be able to prepare for your Hazardous Materials (HazMat) endorsement exam by taking a practice test prepared by our expert writers, based closely on information and knowledge-testing sections from the Missouri Commercial Driver License Manual. Receiving your HazMat endorsement will broaden your career opportunities, so practice as often as necessary until you are comfortable with the subject material and achieve a score a passing score consistently (ideally, 80% or above). Reading each question’s explanation is also recommended, as they contain information that may help you answer future questions on your real exam. Good luck today on this practice test, with your study regimen, and on what will soon be a successful new HazMat endorsement!

Commercial Driver's License
  • Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
  • Triple-checked for accuracy

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.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.

What to expect on the actual MO DOR exam

30

questions

24

correct answers to pass

80%

passing score

List of questions (classic view)

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