CHST Health Hazards and PPE 5

Question 1

Which of the following best describes the 'action level' for noise under OSHA's Hearing Conservation Amendment (29 CFR 1910.95)?

Accepted Answer

85 dBA as an 8-hour TWA

Answer

The OSHA action level for noise is 85 dBA as an 8-hour TWA, which triggers audiometric testing and hearing conservation program requirements.

Question 2

A construction worker experiences sudden loss of sensation in fingers after extended use of a jackhammer. This condition is MOST likely:

Accepted Answer

Hand-arm vibration syndrome (HAVS)

Answer

Hand-arm vibration syndrome (HAVS) results from prolonged use of vibrating tools and causes vascular and neurological damage to fingers and hands.

Question 3

Under OSHA's Hazard Communication Standard, what information must appear on the inner container label of a hazardous chemical?

Accepted Answer

Product identifier, signal word, hazard pictograms, precautionary statements, and supplier information

Answer

GHS-aligned labels must include the product identifier, signal word, hazard pictograms, hazard statements, precautionary statements, and supplier identification.

Question 4

Which class of fire extinguisher is specifically required when a chemical fire involves energized electrical equipment?

Accepted Answer

Class C

Answer

Class C extinguishers use non-conductive agents appropriate for fires involving energized electrical equipment.

Question 5

A worker on a demolition project is exposed to asbestos-containing materials. Under OSHA 29 CFR 1926.1101, the minimum PPE required for Class I asbestos work includes:

Accepted Answer

Supplied-air respirator in pressure-demand mode and full-body protective clothing with hood

Answer

Class I asbestos work (removal of TSI or surfacing ACM) requires a supplied-air respirator in pressure-demand mode and full protective clothing including hood and gloves.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST Health Hazards and PPE 5