CAOHC MULTIPLE CHOICE EXAM (AID TO ASSIST WITH STUDYING
FOR CAOHC CERTIFICATION) | 2026 UPDATE |QUESTIONS AND
ANSWERS | WITH COMPLETE SOLUTION!
100% Correct 67
Incorrect 0
1 of 67
Term
The Permissible Exposure Limit (PEL) recommended by NIOSH.
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95 dBA TWA 90 dBA TWA
85 dBA TWA 80 dBA TWA
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, 2 of 67
Term
Conductive Hearing Loss
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Hearing loss that occurs from Hearing loss that occurs from
injury or illness in the cochlea problem along the auditory nerve
Hearing loss or impairment
Hearing loss that occurs from a
resulting from interference
vestibular/balance problem
with the transmission of sound
waves to the cochlea
Don't know?
3 of 67
Term
A standard threshold shift is a _____dB average change or more at _
___________Hz, ____________Hz, and ____________ Hz on the current audiogram when
compared to a baseline
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10, 3000, 4000, 6000 25; 2000, 3000, 4000
, 10; 1000, 2000, 3000 10; 2000, 3000, 4000
Don't know?
4 of 67
Term
Other than one-on-one, training small groups of________personnel
for ___________ minutes is generally more effective
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5-10; 10-15 2-4; 30
8; 5 15-20; 15-20
Don't know?
5 of 67
Term
Term for aging of the ear which results in a sensorineural hearing
loss
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Tympanoplasty Otosclerosis
, Acoustic Neuroma Presbycusis
Don't know?
6 of 67
Term
Steady State noise lasts more than 1 second and is hazardous at
_______.
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85 dBA 90 dBA
140 dBP 140 dBA
Don't know?
7 of 67
Term
The primary method for reducing exposures that can be
recommended by an acoustical engineer
Give this one a try later!
FOR CAOHC CERTIFICATION) | 2026 UPDATE |QUESTIONS AND
ANSWERS | WITH COMPLETE SOLUTION!
100% Correct 67
Incorrect 0
1 of 67
Term
The Permissible Exposure Limit (PEL) recommended by NIOSH.
Give this one a try later!
95 dBA TWA 90 dBA TWA
85 dBA TWA 80 dBA TWA
Don't know?
, 2 of 67
Term
Conductive Hearing Loss
Give this one a try later!
Hearing loss that occurs from Hearing loss that occurs from
injury or illness in the cochlea problem along the auditory nerve
Hearing loss or impairment
Hearing loss that occurs from a
resulting from interference
vestibular/balance problem
with the transmission of sound
waves to the cochlea
Don't know?
3 of 67
Term
A standard threshold shift is a _____dB average change or more at _
___________Hz, ____________Hz, and ____________ Hz on the current audiogram when
compared to a baseline
Give this one a try later!
10, 3000, 4000, 6000 25; 2000, 3000, 4000
, 10; 1000, 2000, 3000 10; 2000, 3000, 4000
Don't know?
4 of 67
Term
Other than one-on-one, training small groups of________personnel
for ___________ minutes is generally more effective
Give this one a try later!
5-10; 10-15 2-4; 30
8; 5 15-20; 15-20
Don't know?
5 of 67
Term
Term for aging of the ear which results in a sensorineural hearing
loss
Give this one a try later!
Tympanoplasty Otosclerosis
, Acoustic Neuroma Presbycusis
Don't know?
6 of 67
Term
Steady State noise lasts more than 1 second and is hazardous at
_______.
Give this one a try later!
85 dBA 90 dBA
140 dBP 140 dBA
Don't know?
7 of 67
Term
The primary method for reducing exposures that can be
recommended by an acoustical engineer
Give this one a try later!
