OHC Test Questions with Correct Answers Solved 100%
One disadvantage of a manual audiometer is it is more prone to human _______ than the
microprocessor - Answers Error
Too much noise in the test room may affect heating test results, especially in the _____ frequency
region, and particularly at _____ Hz. - Answers Low, 500Hz
The OSHA regulation requires a functional (listening) check AND a biological/bio-acoustic calibration of
the audiometer every ____. - Answers Day
The OSHA Action Level is _____dBA during an 8-hour Time Weighted Average - Answers 85dBA
MSHA governs the _____ industry. - Answers Mining
T/F: A worker exposed to an 8 hour TWA of 90 dBA or greater must wear hearing protection - Answers
TRUE
The OSHA Exchange Rate means that the exposure time is cut in____ for every _____dB increase in
noise exposure levels. - Answers HALF for every 5dB
Workers with 100dB PEL must wear hearing protection if exposure time is ____ or more hours. -
Answers Exposure is 2 or more hours
T/F: State regulation can be less strict or restrictive than OSHA - Answers FALSE
Truck drivers are covered under Department of ____ regulations - Answers Transportation
T/F: If more than one regulation applies to workplace follow the most stringent one. - Answers TRUE
Workers cannot be exposed to _____ dB(P) - Answers >140dB(P)
Action Level/AL-Exposure Limits - Answers The specific point at which an 8 hour exposure is unsafe.
85dBA during 8-hour TWA
Time Weighted Average (TWA) - Answers The amount of a substance employees can be exposed to over
an eight-hour day.
T/F: Hearing protection must be available and is required to be used by worker. - Answers FALSE - must
be provided but NOT required
Acoustic/electro-acoustic calibration of an audiometer is required in f a biological/bio-acoustic
calibration check deviates from baseline by more than +/- _____ dB. - Answers +/-5dB
Frequency is measured in ____ and perceived as _____. - Answers Hertz (Hz), pitch
Intensity is measured in _ and perceived as _ - Answers Decibels (dB), Loudness
, The OHC is qualified to perform _ conduction testing. - Answers Air
How often must an acoustical calibration be performed? - Answers Yearly
_ dB is the average softest sound normal hearing young adults can hear. - Answers 0dB
The 1000 Hz retest must agree with the first 1000Hz test by +/- ___dB - Answers 5dB
When testing an employee, hearing threshold is defined as the softest level the employee hears the
ascending/rising tone __% of the time, or 2 out of __ responses. - Answers 50% of the time or
2 out of 3 responses
A Standard Threshold Shift occurs when there is an average change of ___dB or more at 2000, ______,
and _____ Hz. - Answers 10dB or more at 2k, 3k, and 4k
Hearing aids should be ______ during the hearing test. - Answers Removed
Federal OSHA requires employers to notify an employee of an STS in writing within _____ days; although
a restart is not required, if done it must be within _____days of determination. - Answers 21 days; 5
days
The MAIN purpose of occupational hearing testing is to identify early indications of ______. - Answers
NIHL - Noise Induced Hearing Loss
When testing an employee who has tinnitus, a ______ tone is easier to detect. - Answers Pulsed
When testing hearing, once a starting point is established the OHC should decrease presentations by
______dB and increase them by _____dB. - Answers 10 dB, 5dB
What can affect the reliability of audiometric test results? - Answers Ambient noise
Rhythm of the tester
Headphone placement
According to OSHA, the following audiograms should be preceded by at least 14 hours free from
workplace noise: - Answers Baseline
A Standard Threshold Shift should be reviewed by your _____. - Answers Professional Supervisor
STS - Answers Standard Threshold Shift
The tympanic membrane (ear drum) is located: - Answers between the outer and middle ear
A hearing loss caused by a problem that occurs only in the middle ear would be ______ - Answers
Conductive
A hearing loss that occurs in the inner ear would be _____ - Answers Sensorineural
One disadvantage of a manual audiometer is it is more prone to human _______ than the
microprocessor - Answers Error
Too much noise in the test room may affect heating test results, especially in the _____ frequency
region, and particularly at _____ Hz. - Answers Low, 500Hz
The OSHA regulation requires a functional (listening) check AND a biological/bio-acoustic calibration of
the audiometer every ____. - Answers Day
The OSHA Action Level is _____dBA during an 8-hour Time Weighted Average - Answers 85dBA
MSHA governs the _____ industry. - Answers Mining
T/F: A worker exposed to an 8 hour TWA of 90 dBA or greater must wear hearing protection - Answers
TRUE
The OSHA Exchange Rate means that the exposure time is cut in____ for every _____dB increase in
noise exposure levels. - Answers HALF for every 5dB
Workers with 100dB PEL must wear hearing protection if exposure time is ____ or more hours. -
Answers Exposure is 2 or more hours
T/F: State regulation can be less strict or restrictive than OSHA - Answers FALSE
Truck drivers are covered under Department of ____ regulations - Answers Transportation
T/F: If more than one regulation applies to workplace follow the most stringent one. - Answers TRUE
Workers cannot be exposed to _____ dB(P) - Answers >140dB(P)
Action Level/AL-Exposure Limits - Answers The specific point at which an 8 hour exposure is unsafe.
85dBA during 8-hour TWA
Time Weighted Average (TWA) - Answers The amount of a substance employees can be exposed to over
an eight-hour day.
T/F: Hearing protection must be available and is required to be used by worker. - Answers FALSE - must
be provided but NOT required
Acoustic/electro-acoustic calibration of an audiometer is required in f a biological/bio-acoustic
calibration check deviates from baseline by more than +/- _____ dB. - Answers +/-5dB
Frequency is measured in ____ and perceived as _____. - Answers Hertz (Hz), pitch
Intensity is measured in _ and perceived as _ - Answers Decibels (dB), Loudness
, The OHC is qualified to perform _ conduction testing. - Answers Air
How often must an acoustical calibration be performed? - Answers Yearly
_ dB is the average softest sound normal hearing young adults can hear. - Answers 0dB
The 1000 Hz retest must agree with the first 1000Hz test by +/- ___dB - Answers 5dB
When testing an employee, hearing threshold is defined as the softest level the employee hears the
ascending/rising tone __% of the time, or 2 out of __ responses. - Answers 50% of the time or
2 out of 3 responses
A Standard Threshold Shift occurs when there is an average change of ___dB or more at 2000, ______,
and _____ Hz. - Answers 10dB or more at 2k, 3k, and 4k
Hearing aids should be ______ during the hearing test. - Answers Removed
Federal OSHA requires employers to notify an employee of an STS in writing within _____ days; although
a restart is not required, if done it must be within _____days of determination. - Answers 21 days; 5
days
The MAIN purpose of occupational hearing testing is to identify early indications of ______. - Answers
NIHL - Noise Induced Hearing Loss
When testing an employee who has tinnitus, a ______ tone is easier to detect. - Answers Pulsed
When testing hearing, once a starting point is established the OHC should decrease presentations by
______dB and increase them by _____dB. - Answers 10 dB, 5dB
What can affect the reliability of audiometric test results? - Answers Ambient noise
Rhythm of the tester
Headphone placement
According to OSHA, the following audiograms should be preceded by at least 14 hours free from
workplace noise: - Answers Baseline
A Standard Threshold Shift should be reviewed by your _____. - Answers Professional Supervisor
STS - Answers Standard Threshold Shift
The tympanic membrane (ear drum) is located: - Answers between the outer and middle ear
A hearing loss caused by a problem that occurs only in the middle ear would be ______ - Answers
Conductive
A hearing loss that occurs in the inner ear would be _____ - Answers Sensorineural
