CAOHC Hearing Protection Device Fitting 3

Question 1

Which type of hearing protector is generally most appropriate for workers who must frequently enter and exit noisy areas?

Accepted Answer

Banded earplugs or earmuffs that can be quickly removed and replaced

Answer

Deeply inserted foam earplugs

Answer

Custom-molded solid earplugs

Answer

Electronic earplugs with active noise cancellation

Question 2

What should a hearing conservationist check when evaluating the condition of reusable earplugs?

Accepted Answer

Flexibility, cleanliness, and whether the material has hardened or cracked

Answer

Only whether the NRR label is still readable

Answer

The manufacture date printed on the plug

Answer

Whether the plug still fits inside the original packaging

Question 3

How does earmuff headband tension affect noise attenuation?

Accepted Answer

Decreased headband tension reduces the seal around the ear, lowering attenuation

Answer

Headband tension has no effect on attenuation

Answer

Tighter headband tension reduces attenuation by causing discomfort

Answer

Only the cushion material determines attenuation

Question 4

What is the primary advantage of electronic hearing protectors in occupational settings?

Accepted Answer

They allow normal conversation and warning signals while blocking hazardous noise levels

Answer

They provide the highest NRR of any type

Answer

They never require battery replacement

Answer

They automatically report noise exposure data to OSHA

Question 5

Why is it important to offer employees a choice of several hearing protector types?

Accepted Answer

Individual ear canal anatomy, comfort preferences, and job tasks vary, so no single protector suits everyone

Answer

OSHA requires offering at least five different types

Answer

It reduces the overall cost of the program

Answer

Different protectors are needed for different frequencies of noise

Question 6

What is overprotection in hearing protector selection and why is it a concern?

Accepted Answer

Providing so much attenuation that the worker cannot hear speech, alarms, or important sounds

Answer

Using hearing protectors when noise levels are below 85 dBA

Answer

Wearing two sets of earmuffs simultaneously

Answer

Using hearing protectors that exceed their expiration date