Safety & Emergency Hazardous Materials (HazMat)

Question 1

What does the NFPA 704 diamond's blue quadrant indicate?

Accepted Answer

Health hazard

Answer

Flammability

Answer

Reactivity/instability

Answer

Special hazards

Question 2

What does a DOT placard with an orange background and the number 1090 identify?

Accepted Answer

Flammable liquid (acetone)

Answer

Explosive

Answer

Corrosive material

Answer

Poison gas

Question 3

What is the primary reference document used by emergency responders at hazmat scenes?

Accepted Answer

Emergency Response Guidebook (ERG)

Answer

OSHA 29 CFR 1910.120

Answer

NFPA 472

Answer

DOT 49 CFR Part 172

Question 4

What does the 'Immediately Dangerous to Life or Health' (IDLH) value represent?

Accepted Answer

A concentration that poses an immediate threat to life or causes irreversible health effects within 30 minutes

Answer

The safe exposure limit for 8 hours

Answer

The odor threshold of a chemical

Answer

A level requiring evacuation of a 1-mile radius

Question 5

What is decontamination in a hazmat response?

Accepted Answer

The process of removing or neutralizing contaminants from people, equipment, and the environment

Answer

Evacuating people from the hot zone

Answer

Sealing off the contaminated area

Answer

Identifying the hazardous material

Question 6

Which hazmat zone is the area of contamination where the substance is present?

Accepted Answer

Hot zone (exclusion zone)

Answer

Warm zone (contamination reduction zone)

Answer

Cold zone (support zone)

Answer

Buffer zone