ASP ASP Ergonomics & Occupational Health 2

Question 1

Which occupational disease is caused by inhalation of crystalline silica dust and results in scarring of lung tissue?

Accepted Answer

Silicosis

Answer

Silicosis is a fibrotic lung disease caused by inhaling crystalline silica particles, commonly affecting workers in mining, quarrying, and construction.

Question 2

Under OSHA's hearing conservation standard (29 CFR 1910.95), at what 8-hour TWA noise level must employers implement a hearing conservation program?

Accepted Answer

85 dBA

Answer

OSHA requires a hearing conservation program when workers are exposed to noise levels at or above 85 dBA as an 8-hour time-weighted average (TWA).

Question 3

What is the primary health concern associated with occupational exposure to lead?

Accepted Answer

Peripheral neuropathy and central nervous system damage

Answer

Lead is a neurotoxin that affects the peripheral and central nervous system, and at high levels can cause encephalopathy, renal damage, and hematopoietic effects.

Question 4

Which index is commonly used to assess heat stress risk by combining temperature, humidity, wind speed, and radiant heat?

Accepted Answer

Wet Bulb Globe Temperature (WBGT)

Answer

The Wet Bulb Globe Temperature (WBGT) index is the most commonly used occupational heat stress measure as it accounts for multiple environmental factors including radiant heat.

Question 5

Which term describes the concentration of a chemical in the air to which nearly all workers can be repeatedly exposed for a working lifetime without adverse health effects?

Accepted Answer

Threshold Limit Value-Time Weighted Average (TLV-TWA)

Answer

The TLV-TWA, published by ACGIH, represents the airborne concentration for a normal 8-hour workday and 40-hour workweek that nearly all workers can tolerate without adverse effects.

ASP - Safety Fundamentals Practice Test

ASP - Safety Fundamentals Practice Test

ASP ASP Ergonomics & Occupational Health 2