ASP ASP Hazardous Materials and Chemical Safety 4

Question 1

Which NFPA 704 diamond quadrant color indicates health hazard?

Accepted Answer

Blue (left)

Answer

The blue quadrant on the left of the NFPA 704 diamond represents health hazard, rated 0–4.

Question 2

Under OSHA's HazCom standard (29 CFR 1910.1200), what is the primary purpose of a Safety Data Sheet (SDS)?

Accepted Answer

Communicate chemical hazard information to workers

Answer

SDS documents communicate chemical hazards, safe handling, and emergency response information as required by HazCom 2012.

Question 3

What term describes the minimum concentration of a flammable vapor in air that will ignite?

Accepted Answer

Lower flammable limit (LFL)

Answer

The lower flammable limit (LFL) is the minimum vapor concentration in air that can sustain ignition.

Question 4

A chemical with a vapor density greater than 1.0 will:

Accepted Answer

Sink and accumulate near the floor

Answer

Vapors with density >1.0 (relative to air) are heavier than air and settle in low-lying areas, creating ignition and asphyxiation hazards.

Question 5

Which DOT hazard class covers oxidizers?

Accepted Answer

Class 5

Answer

DOT Class 5 covers oxidizing substances (Division 5.1) and organic peroxides (Division 5.2).

(ASP) Associate Safety Professional Practice Test