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CAOHC
Hearing Conservation Training Quiz
Test how well you remember the information from your hearing conservation training program.
At what point does noise become potentially damaging?
60 decibels
75 decibels
85 decibels
95 decibels
100 decibels
If you have to shout to be understand at __ feet, you are likely in damaging noise.
1
3
5
10
15
What device is commonly used to measure your noise exposure over the course of a day?
Sound sensitivity monitor
Noise level gauge
Oscilloscope of Sound Hazard Alerts (OSHA)
Noise dosimeter
Noise Reduction Rating (NRR) measures how much a protector could reduce noise. Why is this often overestimated?
NRRs assume expert fitting
NRRs assume the device conforms to the ear canal
Many people don't know how to properly insert hearing protectors
All of the above
Why should you try different types of protectors?
Some types may fit better than others
Some may be more comfortable than others
Some may reduce noise too much
Some may not be suited to the needs of your job
All of the above
When rolling down a foam plug, you should
Roll down the entire plug, including flanges
Roll down gradually
Avoid creases
Roll down to as tight a cylinder as possible
All of the above
What is a disadvantage of premolded plugs?
They come in few styles
They can feel hot or heavy
They are disposable
They can loosen with talking or chewing
All of the above
What is a disadvantage of earmuffs?
They can feel hot or heavy
They are difficult to fit properly
None of the parts are usually replaceable
They can look silly
All of the above
Why might you prefer banded plugs to foam plugs?
They offer higher noise reduction
They are more convenient if you move in and out of noise often
They are disposable
You are a fan of rock-and-roll groups
All of the above
Why should you choose protectors that lower noise to between 70 and 80 decibels?
Less reduction may expose you to damaging noise
More reduction may obscure warning sounds
More reduction may not allow communication with coworkers
All of the above
During testing, when should you press and release the handswitch?
When your neighbor does
When you can no longer hear any tones
Once every time you hear a set of tones
Three times for each set of tones
When you need assistance
Upon finishing a hearing test among a group, it is common courtesy to
Pump your fist in celebration
Assist a neighbor with his/her test
Stand, stretch and do a few jumping jacks to get the blood going again
Wait quietly for all others to finish
Take a short nap to recover from the strain
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