CAOHC Training UPDATED ACTUAL Questions and CORRECT Answers
Educate, inform, and guide industry and those serving
CAOHC's primary mission is to: industry on successful implementation of occupational
HCP's to prevent occupational hearing loss.
CAOHC recertification: Is required every 5 years
The sector with the highest incidence of occupational
Manufacturing
hearing loss:
Auditory effects of noise exposure include noise-induced
Tinnitus
hearing loss, hyperacusis and?
Noise-induced hearing loss typically occurs initially at? 4000 Hz
Early signs/symptoms of a noise-induced hearing loss
include tinnitus, diflculty understanding in background Reliance on visual cues
noise, and?
Type of hearing loss that results from cerumen impaction: Conductive
Hearing loss due to aging is called: Presbycusis
Part of ear damaged by hazardous noise exposure: Organ of corti (cochlea)
According to the decibel doubling rule, when you add
together two identical sources of loudness, you increase 3 dB
the loudness by how many dB?
The weighting network resembles how the
human ear responds to sound and is required by OSHA
A dBA
to be used to determine risk and enroll employees in a
HCP
Steady-state or continuous noise, such as a generator, has
1 second or longer
a duration of:
Instrument that captures noise levels at a point in time: Sound level meter
Dosimeter
, When employees are mobile or have varying exposures
over a workday, the recommended instrument for noise
measurement is?
OSHA recommends a minimum of a type micro-
2
phone for noise measurement equipment
The is the HCP team professional most qualified
to conduct noise measurements based on their educa- Industrial Hygienist
tion:
The is the HCP team professional most qualified
Acoustical/noise control engineer
to recommend engineering controls:
Noise can be controlled at the , , or Source, path, receiver
The following is the most effective way of delivering train-
One on One
ing/education:
The following element of a HCP, that is not included in the
Analysis of program effectivemenss
OSHA Noise Amendment, but makes it a model program:
The frequencies that are utilized to determine an OSHA
2000, 3000 and 4000 Hz
STS are:
The amount of average shift from baseline needed for
10 dB
something to be considered an OSHA STS:
This amount of hearing loss at 2000, 3000, and 4000 Hz
25 dB or worse when AVERAGED across above listed fre-
on the current audiogram (if also a shift from baseline)
quencies
may make it an OSHA Recordable STS:
Hearing threshold levels are recorded on an: audiogram
The most fragile part of the audiometer is (are) the: Headphones
Hearing protection must bring employee's exposure level
to dBA, and if they have a confirmed STS, must 90 & 85
bring it to dBA:
2/6
Educate, inform, and guide industry and those serving
CAOHC's primary mission is to: industry on successful implementation of occupational
HCP's to prevent occupational hearing loss.
CAOHC recertification: Is required every 5 years
The sector with the highest incidence of occupational
Manufacturing
hearing loss:
Auditory effects of noise exposure include noise-induced
Tinnitus
hearing loss, hyperacusis and?
Noise-induced hearing loss typically occurs initially at? 4000 Hz
Early signs/symptoms of a noise-induced hearing loss
include tinnitus, diflculty understanding in background Reliance on visual cues
noise, and?
Type of hearing loss that results from cerumen impaction: Conductive
Hearing loss due to aging is called: Presbycusis
Part of ear damaged by hazardous noise exposure: Organ of corti (cochlea)
According to the decibel doubling rule, when you add
together two identical sources of loudness, you increase 3 dB
the loudness by how many dB?
The weighting network resembles how the
human ear responds to sound and is required by OSHA
A dBA
to be used to determine risk and enroll employees in a
HCP
Steady-state or continuous noise, such as a generator, has
1 second or longer
a duration of:
Instrument that captures noise levels at a point in time: Sound level meter
Dosimeter
, When employees are mobile or have varying exposures
over a workday, the recommended instrument for noise
measurement is?
OSHA recommends a minimum of a type micro-
2
phone for noise measurement equipment
The is the HCP team professional most qualified
to conduct noise measurements based on their educa- Industrial Hygienist
tion:
The is the HCP team professional most qualified
Acoustical/noise control engineer
to recommend engineering controls:
Noise can be controlled at the , , or Source, path, receiver
The following is the most effective way of delivering train-
One on One
ing/education:
The following element of a HCP, that is not included in the
Analysis of program effectivemenss
OSHA Noise Amendment, but makes it a model program:
The frequencies that are utilized to determine an OSHA
2000, 3000 and 4000 Hz
STS are:
The amount of average shift from baseline needed for
10 dB
something to be considered an OSHA STS:
This amount of hearing loss at 2000, 3000, and 4000 Hz
25 dB or worse when AVERAGED across above listed fre-
on the current audiogram (if also a shift from baseline)
quencies
may make it an OSHA Recordable STS:
Hearing threshold levels are recorded on an: audiogram
The most fragile part of the audiometer is (are) the: Headphones
Hearing protection must bring employee's exposure level
to dBA, and if they have a confirmed STS, must 90 & 85
bring it to dBA:
2/6
