CSS Chemical Safety and Hazard Communication 3

Question 1

A chemical with a vapor density greater than 1.0 will behave in which of the following ways when released into the air?

Accepted Answer

Settle and accumulate in low-lying areas such as pits and trenches

Answer

Vapor density greater than 1.0 means the vapor is heavier than air (air = 1.0) and will sink and accumulate in low areas, increasing risk in pits, trenches, and confined spaces.

Question 2

Which OSHA standard specifically governs the storage and handling of flammable and combustible liquids in general industry?

Accepted Answer

29 CFR 1910.106

Answer

29 CFR 1910.106 covers flammable liquids storage, handling, and use requirements including approved containers, storage rooms, and quantity limits.

Question 3

What is the primary purpose of a Chemical Hygiene Plan required under OSHA's laboratory standard (29 CFR 1910.1450)?

Accepted Answer

To protect laboratory employees from hazardous chemical health effects

Answer

The Chemical Hygiene Plan is a written program specifying the procedures, equipment, PPE, and work practices that protect laboratory workers from chemical hazards.

Question 4

Under the GHS hazard category numbering system, which category number represents the MOST severe hazard?

Accepted Answer

Category 1

Answer

In GHS, Category 1 always represents the most severe or most hazardous classification within any given hazard class — numbers increase as severity decreases.

Question 5

The Safety Data Sheet (SDS) format replaced which older document format in the United States?

Accepted Answer

Material Safety Data Sheet (MSDS)

Answer

OSHA's 2012 HazCom revision aligned with GHS and replaced the variable-format MSDS with the standardized 16-section SDS.

(CSS) Certified Safety Supervisor Practice Test

(CSS) Certified Safety Supervisor Practice Test

CSS Chemical Safety and Hazard Communication 3