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  • Updated for November 2024
  • Based on 2024 DC commercial driver's license manual

Free District of Columbia CDL HazMat Practice Test 2024

One of the best ways to get the best jobs is to have qualifications that others may lack. One of the best ways for you to stand out is to receive your Hazardous Materials (HazMat) endorsement so that you can haul a wider variety of loads. This practice exam has 30 multiple-choice questions. It has been carefully designed by our expert writers, based on information in the District of Columbia Commercial Driver License Manual. Practice as often as necessary until you achieve an 80% passing grade, which will help you pass your real exam. An explanation is provided for each answer. Read it carefully; it includes additional information that you’ll be able to use on your real exam. Good luck, practice often, and remember to drive safely!

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 DC DMV exam

30

questions

24

correct answers to pass

80%

passing score

List of questions (classic view)

  1. The Emergency Response Guidebook (ERG)
  2. A safe haven is
  3. What is the purpose of a driver placarding his or her vehicle?
  4. Which of the following is NOT an acceptable type of marking for hazardous materials?
  5. How far away are you allowed to park from a bridge, tunnel, or building if you are carrying Division 1.2 or 1.3 materials?
  6. If you are already carrying 100 pounds of silver cyanide, what precautions must you take if you are given papers at the dock to carry 100 cartons of battery acid?
  7. A placarded vehicle must carry a fire extinguisher with a minimum rating of
  8. 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?
  9. Cargo tanks are
  10. What are the main differences between a cargo tank and a portable tank?
  11. Which of the following materials is an acceptable floor liner for moving Division 1.1 or 1.2 materials?
  12. When shippers package the material, they are trying to
  13. If you are carrying Division 1.2 or 1.3 materials, how far away must you park from the traveled portion of the roadway?
  14. To determine if you need to use placards, which of the following do you NOT need to know?
  15. What is a technical name?
  16. Besides the shipping papers and the packages, the other two places where the hazardous material identification number must appear are
  17. How often should you check the tires on a placarded trailer that has dual tires?
  18. What action should you take if you discover your hazardous materials shipment leaking at a rest stop but there is no phone available?
  19. Which of the following three hazard classes should NOT be placed into a temperature-controlled trailer (one with a heater/air conditioner unit)?
  20. Which of the following are necessary qualifications for non-bulk packaging?
  21. You must NEVER smoke or perform any activity involving fire, within 25 feet of
  22. Your engine runs a pump when you are delivering compressed gas. After finishing the delivery, when should you turn off the engine?
  23. Where are the two main places where the hazardous material identification number appears?
  24. In what location must you keep your shipping papers that describe any hazardous materials?
  25. Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 materials?
  26. A shipping paper for hazardous materials must include
  27. If there is an accident involving hazardous materials, who reports it to the proper government agency?
  28. If you are carrying a total of less than 200 pounds of the hazard classes in Placard Table 1,
  29. A vehicle contains 500 pounds each of Division 1.1 explosives and Division 1.2 explosives. You must have
  30. Placards must be at least _______ from all other markings.
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