CAOHC Exam review
Elements to an effective hearing program? - Answer-hearing protection, record keeping, training, noise
monitoring and control
In addition to noise, ____ exposure can be caused by sensorineral hearing loss? - Answer-Ototoxicant
Intensity is measured in ____ - Answer-decibels (dB)
Frequency is measured in ___ - Answer-Hz (Hertz)
Functions of the outer ear - Answer-collects sound waves and enhances high frequency sounds
Functions of the middle - Answer-transforms sound to mechanical energy
The three bones in the ear that help with hearing are the ___, _____, and the ___ - Answer-Incus,
Malleus, and Stapes
Human hearing range at birth - Answer-20-20000 Hz
, What causes sensorineural hearing loss? - Answer-
When hearing is only available in one ear and not the other is called ____ hearing loss - Answer-
Unilateral
Type S (limited function) offers - Answer-lower accuracy with limited function
What is impulse/impact noise? - Answer-
What part of the ear is shaped like a snail? - Answer-The cochlea
OSHA defines 100% noise dose as - Answer-90dB(A)
IF the retest does not confirm the STS, ____ are no longer mandatory if TWA is 85-89dB(A) - Answer-
hearing protective devices
What is intermittent noise? - Answer-
What is Continuous noise? - Answer-
Adding a muffler to an engine is an example of _____ control - Answer-engineering
Sound level meters and dosimeters should be calibrated - Answer-yearly
What part of the ear does hearing loss affect? - Answer-Inner ear (cochlea)
Elements to an effective hearing program? - Answer-hearing protection, record keeping, training, noise
monitoring and control
In addition to noise, ____ exposure can be caused by sensorineral hearing loss? - Answer-Ototoxicant
Intensity is measured in ____ - Answer-decibels (dB)
Frequency is measured in ___ - Answer-Hz (Hertz)
Functions of the outer ear - Answer-collects sound waves and enhances high frequency sounds
Functions of the middle - Answer-transforms sound to mechanical energy
The three bones in the ear that help with hearing are the ___, _____, and the ___ - Answer-Incus,
Malleus, and Stapes
Human hearing range at birth - Answer-20-20000 Hz
, What causes sensorineural hearing loss? - Answer-
When hearing is only available in one ear and not the other is called ____ hearing loss - Answer-
Unilateral
Type S (limited function) offers - Answer-lower accuracy with limited function
What is impulse/impact noise? - Answer-
What part of the ear is shaped like a snail? - Answer-The cochlea
OSHA defines 100% noise dose as - Answer-90dB(A)
IF the retest does not confirm the STS, ____ are no longer mandatory if TWA is 85-89dB(A) - Answer-
hearing protective devices
What is intermittent noise? - Answer-
What is Continuous noise? - Answer-
Adding a muffler to an engine is an example of _____ control - Answer-engineering
Sound level meters and dosimeters should be calibrated - Answer-yearly
What part of the ear does hearing loss affect? - Answer-Inner ear (cochlea)
