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Any driver, regardless of the vehicle Class, who wants to haul hazardous materials, must add an “H” endorsement to their CDL. In order to obtain the Hazmat endorsement drivers are required to pass a Transportation Security Administration background check and a knowledge test. The Ohio hazmat test consists of 30 questions. To pass, you must correctly answer at least 24 questions (80%). The OH CDL hazmat test covers the information found in the Ohio CDL Manual. Study the chapter covering hazardous materials to learn how to recognize, handle, and transport Hazmat, then take this practice test to prepare for your exam!
1. If you are at the scene of an incident involving hazardous materials, you should:
write description of the scene on the shipping paper.
keep people far away and upwind.
avoid warn others of the danger as this could caus a panic attack.
2. Why should you check your mirrors regularly to know where other vehicles are around you?
To flash the brake lights if you are being tailgated.
To move out of their way if they want to get past.
To know whether you can make a quick lane change in an emergency.
3. The manifest for transporting hazardous wastes must be:
attached to the appropriate placard.
signed by hand.
appear on both sides and ends of the vehicle.
4. When driving a 60 foot truck at 35 mph in ideal conditions, you should keep at least _______ of space in front of you.
6 seconds
12 seconds
5 seconds
5. Who is required to keep a record of hazardous materials training?
HazMat employers
The person receiving the training
The local transportation agency
6. If your vehicle has a breakdown or accident while carrying explosives, what should you do?
Do not allow smoking or open fire near the vehicle.
Warn others of the danger.
All of the above.
7. Class 1 hazardous materials include:
Flammable liquids
Flammable solids
8. Which of the following is NOT something you must know in order to determine if you need to use placards?
The amount of all hazardous materials of all classes on your vehicle.
The manufacturing date of the materials.
The amount of hazardous material being shipped.
9. When the temperature drops:
bridges will freeze before the road will.
bridges usually freeze after other parts of the roadway.
bridges will not freeze.
10. Anti-lock brakes:
keep your brakes from locking up when you brake hard.
increase your stopping distance.
help you stop faster.
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OH CDL Hazmat Test

Number of questions: 30
Correct answers to pass:24
Passing score:80%
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