Instructions

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 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 possible answer choices. Test questions come from the Iowa Commercial Driver License Manual. Questions come from the chapters covering: Hazardous Materials, Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving. The Hazardous Materials endorsement can be used with Class A, B and C CDL.

Number of Question 30

Passing Score 24

1. Which type of material may be required to have a transport index?

Liquid

Combustible

Radioactive

Some radioactive materials are required to be accompanied by a transport index. A transport index is a number that indicates how much control the material will require during transport. The total transport index of all cargo in a single vehicle may not exceed 50.

2. If you are transporting hazardous materials and the cargo is on fire, you should:

Try to put it out with a fire extinguisher.

Contact emergency personnel and let them battle the fire.

Hope the fire goes out by itself.

Fighting a hazardous materials fire requires special training and protective gear. Unless you have the proper equipment and training, do not try to fight a hazardous materials fire yourself.

3. Hazardous materials shipping papers may be:

Kept in a pouch attached to the driver's side door.

Taped to the passenger's side window.

Hidden under a seat.

When transporting hazardous materials, shipping papers should be kept in a pouch in the driver's side door, or in another location where the driver is able to easily reach them while their seat belt is fastened. The papers must be easily visible to anyone who is entering the cab.

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

Diamond.

Triangle.

Circle.

Hazardous materials warning placards are diamond-shaped.

5. Placards showing the type of hazardous materials in a vehicle are usually which shape?

A tall rectangle

A triangle

A diamond

In general, vehicles carrying hazardous materials are required to display diamond-shaped warning signs on all four sides. These warning signs are called "placards."