COHN COHN Environmental and Industrial Hygiene 2

Question 1

Which route of entry is the most common pathway for occupational chemical exposures?

Accepted Answer

Inhalation

Answer

Ingestion

Answer

Injection

Answer

Skin absorption

Question 2

What does a noise dosimeter measure in an occupational setting?

Accepted Answer

A worker's cumulative noise exposure over a work shift

Answer

Peak noise levels only during machinery startups

Answer

Background noise levels in office environments

Answer

Sound frequency ranges in industrial machinery

Question 3

What is the OSHA permissible exposure limit (PEL) for noise as an 8-hour time-weighted average (TWA)?

Accepted Answer

90 dBA

Answer

85 dBA

Answer

95 dBA

Answer

100 dBA

Question 4

What term describes the skin condition caused by repeated occupational contact with irritating chemicals?

Accepted Answer

Contact dermatitis

Answer

Occupational asthma

Answer

Mesothelioma

Answer

Silicosis

Question 5

Which industrial hygiene sampling strategy determines the worst-case exposure for a worker during a particular task?

Accepted Answer

Worst-case or task-based sampling

Answer

Grab sampling

Answer

Full-shift time-weighted average sampling

Answer

Biological monitoring

Question 6

What is the primary purpose of a Safety Data Sheet (SDS) in the workplace?

Accepted Answer

To provide hazard communication and safe handling information for chemicals

Answer

To document workers' compensation claims for chemical injuries

Answer

To record OSHA inspection findings for hazardous substances

Answer

To calculate permissible exposure limits for chemical mixtures