CIH General Practice 3

Question 1

A CIH must determine if a new solvent meets the definition of a 'health hazard' under OSHA's Hazard Communication Standard. Which criterion applies?

Accepted Answer

It is classified as a health hazard based on evidence using GHS criteria

Answer

Under OSHA HazCom (29 CFR 1910.1200), health hazard classification follows GHS-aligned criteria based on scientific evidence of toxicological effects.

Question 2

What is the primary purpose of conducting a baseline audiogram for workers enrolled in a hearing conservation program?

Accepted Answer

To establish a reference audiogram against which future tests are compared for Standard Threshold Shifts

Answer

The baseline audiogram serves as the reference point for detecting a Standard Threshold Shift (STS) of 10 dB or more in subsequent annual audiograms.

Question 3

Which ventilation parameter most directly determines whether a local exhaust ventilation (LEV) hood will capture a contaminant?

Accepted Answer

Face velocity or capture velocity at the hood opening

Answer

Capture velocity is the air velocity at the contaminant source needed to overcome ambient air currents and draw the contaminant into the hood.

Question 4

A worker develops contact dermatitis on the hands after starting a new job. The most appropriate first investigative step is to:

Accepted Answer

Obtain a thorough occupational and exposure history

Answer

A detailed occupational and exposure history is the essential first step to identify potential causative agents before implementing controls or referrals.

Question 5

Under the hierarchy of controls, substitution is preferred over engineering controls primarily because:

Accepted Answer

It eliminates or reduces the hazard at the source rather than containing it

Answer

Substitution removes or reduces the intrinsic hazard, while engineering controls merely contain or limit exposure without eliminating the hazardous agent.

CIH - Certified Industrial Hygienist Exam Practice Test

CIH - Certified Industrial Hygienist Exam Practice Test

CIH General Practice 3