HazMat

This endorsement is required to haul hazardous materials as defined in Title 49, CFR, §383.5. To receive this endorsement, drivers must also pass a Transportation Security Administration background.. Read More

This endorsement is required to haul hazardous materials as defined in Title 49, CFR, §383.5. To receive this endorsement, drivers must also pass a Transportation Security Administration background check. To receive this endorsement, applicants must pass a test. The test consists of 30 multiple choice questions. To pass, the applicant must answer at least 24 questions correctly. Each question has three or four possible answer choices. Test questions come from the Arkansas Commercial Driver’s License Manual. Questions come from the chapter covering: Hazardous Materials. The Hazardous Materials endorsement can be used with Class A, B and C CDL.

Number of Question
Passing Score

1. If transporting chlorine, what must be kept in the vehicle?

Explanation
A driver transporting chlorine in cargo tanks must keep an approved gas mask and an emergency kit in their vehicle.

2. In the event of a cargo fire, opening trailer doors may cause a fire to expand because:

Explanation
In the event of a cargo fire, you should not open the trailer doors. Doing this could cause the fire to flare up by giving it access to more oxygen.

3. A placard indicating hazardous materials is shaped like a:

Explanation
Hazardous materials warning placards are diamond-shaped.

4. Unless excepted, a shipping paper must list:

Explanation
Unless excepted, hazardous materials shipping papers must list an emergency response telephone number.

5. Your engine runs a pump used during the delivery of compressed gas. After delivery, you should turn off the engine ____ unhooking the hoses.

Explanation
Unless your engine runs a pump for product transfer, turn it off when loading or unloading a compressed gas tank. If you do use your engine to run a pump, you should turn the engine off after the product transfer but before unhooking the hoses.

6. A person supervising the loading of a tank:

Explanation
The loading and unloading of a tank must be watched by a qualified person. They must be alert; have a clear view of the tank; stay within 25 feet of the tank; know the hazards of the materials involved; know the procedures to follow in an emergency; and be authorized and able to move the tank if necessary.
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