CSS CSS - Certified Safety Supervisor Personal Protective Equipment and Industrial Hygiene Questions and Answers 1

Question 1

Which ANSI standard governs the selection and use of industrial head protection in the US?

Accepted Answer

ANSI Z89.1

Answer

ANSI Z89.1 establishes performance requirements for industrial head protection, including hard hats and bump caps.

Question 2

Which type of hearing protection typically provides the highest Noise Reduction Rating (NRR) in occupational settings?

Accepted Answer

Foam earplugs

Answer

Properly inserted foam earplugs generally achieve NRR values of 29–33 dB, the highest among common hearing protection types.

Question 3

OSHA's respiratory protection standard 29 CFR 1910.134 requires a written program when respirators are used in what circumstance?

Accepted Answer

Required for job tasks

Answer

A written respiratory protection program is mandatory whenever respirator use is required to protect worker health.

Question 4

An industrial hygienist measures a worker's 8-hour TWA noise exposure at 92 dBA. Under OSHA 29 CFR 1910.95, what is the permissible exposure limit (PEL) for an 8-hour day?

Accepted Answer

90 dBA

Answer

OSHA's PEL for noise is 90 dBA as an 8-hour TWA; exposure at 92 dBA therefore exceeds the PEL.

Question 5

Which glove material offers the best chemical resistance to ketones and esters?

Accepted Answer

Butyl rubber

Answer

Butyl rubber gloves provide superior resistance to ketones, esters, and many other polar organic solvents.

(CSS) Certified Safety Supervisor Practice Test

(CSS) Certified Safety Supervisor Practice Test

CSS CSS - Certified Safety Supervisor Personal Protective Equipment and Industrial Hygiene Questions and Answers 1