Safety Trained Supervisor Basic Industrial Hygiene Questions and Answers

Question 1

An industrial hygienist is evaluating worker exposure to an airborne chemical. Which of the following is considered the MOST common route of exposure for workplace chemicals?

Accepted Answer

Inhalation (breathing)

Answer

Absorption (skin contact)

Answer

Ingestion (swallowing)

Answer

Injection (skin puncture)

Question 2

A supervisor at a manufacturing plant needs to evaluate noise levels for workers who move between several noisy areas throughout their shift. Which instrument is BEST suited for measuring an individual worker's total noise dose over an 8-hour day?

Accepted Answer

A noise dosimeter

Answer

An octave band analyzer

Answer

A sound level meter

Answer

An acoustic calibrator

Question 3

Which of the following is a key difference between OSHA's Permissible Exposure Limits (PELs) and the ACGIH's Threshold Limit Values (TLVs)?

Accepted Answer

PELs are legally enforceable limits, while TLVs are health-based guidelines.

Answer

TLVs are legally enforceable federal standards, while PELs are recommendations.

Answer

PELs are based solely on health factors, while TLVs consider economic feasibility.

Answer

TLVs are updated less frequently than OSHA PELs.

Question 4

At a welding station, a new ventilation system is installed that uses a capture hood to draw fumes away from the welder's breathing zone before they can spread into the general work area. This type of system is known as:

Accepted Answer

Local exhaust ventilation (LEV)

Answer

General dilution ventilation

Answer

Comfort ventilation

Answer

Natural ventilation

Question 5

The fundamental principles of industrial hygiene are often summarized as a four-step process. Which of the following correctly lists these four steps in their logical order?

Accepted Answer

Anticipation, Recognition, Evaluation, Control

Answer

Evaluation, Recognition, Control, Anticipation

Answer

Recognition, Control, Evaluation, Anticipation

Answer

Control, Anticipation, Recognition, Evaluation

Question 6

A supervisor in a healthcare facility is concerned about workers' potential exposure to infectious diseases when handling patient samples. This type of workplace hazard falls into which category?

Accepted Answer

Biological Hazard

Answer

Chemical Hazard

Answer

Physical Hazard

Answer

Ergonomic Hazard