HAZMAT Practice Test

This CDL Hazmat endorsement practice test will test your knowledge of hazardous materials transport best practices and prime you for your official endorsement exam. Find a CDL school near you.


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#1. You must keep shipping papers describing hazardous materials:

in a pouch on the driver’s door or in clear view within immediate reach while the seat belt is fastened while driving on the driver’s seat when out of the vehicle is correct

#2. Drivers placard their vehicle to _____ the risk.

communicate is correct

#3. Five hazard classes that require placarding in any amount are:

Poison Gas 2.3, Dangerous When Wet 4.3, Explosives 1.3, Explosives 1.2, and Explosives 1.1 is correct

#4. Cargo tanks ____.

are bulk packagings permanently attached to a vehicle is correct

#5. Do you need to stop before a railroad crossing if you are hauling 100 pounds of Division 4.3 Dangerous When Wet material?

yes is correct

#6. With Division 1.1, 1.2, or 1.3 Class A or B, how close can you park to a bridge, tunnel, or building?

Do not park within 300 feet is correct

#7. A portable tank differs from a cargo tank in that ______.

Portable tanks are bulk containers, which are not permanently attached to a vehicle is correct

#8. Where can you find a shipper’s certification?

On the original shipping paper is correct

#9. With Division 1.2 or 1.3 Explosive B, how close to the traveled part of the roadway can you park?

minimum 5 feet is correct

#10. There must be a hazardous materials identification number on the ______ and on the ______.

…shipping papers; …package is correct

#11. For Division 1.1 or 1.2 Explosives A, should the floor liner required be stainless steel?

no is correct

#12. Which of the following is a reason that shippers package material?

contain is correct

#13. How often should you check the tires if your placarded trailer has dual tires?

100 miles is correct

#14. When is it acceptable for non-hazardous materials to be described by hazard class words or identification numbers?

never is correct

#15. What placards, if any, do you need if your load includes 20 pounds of Division 2.3 gas and 1,001 pounds of flammable gas?

none, you cannot load these materials together is correct

#16. It is very important that you never smoke around which hazard classes?

explosives, flammable gas, oxidizers, flammable solids, flammable liquids is correct

#17. A hazard class that uses transport indexes to determine the amount that can be loaded in a single vehicle is _____.

class 7 radioactive materials is correct



This practice test is not official and should be used for entertainment purposes only. Jump to: CDL general knowledge test