HAZWOPER Hazard ID 4

Question 1

Which OSHA standard establishes requirements for hazard communication in the workplace, including labels and SDSs?

Accepted Answer

29 CFR 1910.1200

Answer

29 CFR 1910.1200 is OSHA's Hazard Communication Standard (HazCom), which governs chemical labeling, SDSs, and employee training.

Question 2

When assessing a suspicious package during emergency response, which of the following is a key chemical hazard indicator?

Accepted Answer

Oily stains, unusual odors, or crystals forming around the container

Answer

Physical clues such as oily residue, crystalline deposits, discoloration, or unusual odors suggest chemical contamination or instability.

Question 3

In the context of HAZWOPER, what does the term 'secondary contamination' mean?

Accepted Answer

Transfer of hazardous substances from a contaminated person or item to an uncontaminated one

Answer

Secondary contamination occurs when hazardous materials are transferred from a contaminated source to personnel, equipment, or areas previously unaffected.

Question 4

What does a CGI/LEL meter reading of 10% LEL indicate at a HAZWOPER site?

Accepted Answer

The flammable vapor concentration is 10% of the lower explosive limit

Answer

A CGI reading of 10% LEL means the vapor concentration is 10% of the minimum concentration needed to support combustion — action levels are typically set at 10-25% LEL.

Question 5

Which chemical property helps predict whether a substance will float on or sink below water, affecting spill containment strategy?

Accepted Answer

Specific gravity

Answer

Specific gravity compares a substance's density to water; substances with specific gravity less than 1.0 float, while those greater than 1.0 sink.

(HAZWOPER) Certified HAZWOPER 40-Hour Instructor Practice Test

(HAZWOPER) Certified HAZWOPER 40-Hour Instructor Practice Test

HAZWOPER Hazard ID 4