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CAOHC Bold Items New /Complete Questions With Verified Answers
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CAOHC Bold Items New 2023 -2024 /CompleteQuestions With Verified Answers
Quiz :What does CAOHC stand for? - Answer :Council for the Accreditation in
Occupational Hearing Conservation
Quiz :Main role of CAOHC - Answer :To certify and train Occupational Hearing
Conservationists (OHC)
Quiz :OHCS must be recertified within ________ years of initial certification. -
Answer :Five
Quiz :Tinnitus - Answer :Technical term for ringing or other noises in the ears.
Quiz :Interference with communication, degraded job performance, stress and
annoyance/fatigue - Answer :Problems caused by noise in addition to hearing
loss
Quiz :When is the best time to perform a baseline audiogram? - Answer :14
hours away from noise exposure, preferably before starting work.
Quiz :When is the best time to perform an annual audiogram? - Answer :Well
into the work shift, near the end of the day.
Quiz :In what part of the auditory system does a sensorinerual hearing loss
occur in? - Answer :The inner ear or cochlea or the nerve of hearing
Quiz :Besides noise, one of the most frequent contributors to sensorineural
hearing loss is: - Answer :Presbycusis or the hearing loss from aging
Quiz :The aspect of sound that is perceived as loudness is called _______ and
is quantified in terms of _______. - Answer :Intensity; Decibels
Quiz :A sound's frequency is perceived by the ear as _____ and quantified in
terms of _____. - Answer :Pitch; Hertz
Quiz :The logarithmic average sound exposure level normalized to an 8-hour
workday is called the: - Answer :Time Weighted Average exposure level (TWA)
, Quiz :The relationship between level and duration of an allowable noise
exposure is called: - Answer :The Exchange Rate
Quiz :OSHA and DOD use a ___ DB exchange rate. - Answer :5
Quiz :NIOSH uses a ___ DB exchange rate. - Answer :3
Quiz :Difference between OSHA and NIOSH - Answer :Enforcement versus
research/best practice.
Quiz :OSHA's noise regulation calls for a PEL of ___ DBA, an exchange rate of
___DB, and an action level of ___ DBA. - Answer :90; 5; 85
Quiz :According to the OSHA regulation, what must employees and employers
do if the PEL is exceeded? - Answer :Consider Engineering controls,
administrative controls, use hearing protection.
Quiz :Which is the most delicate part of the audiometric system? -
Answer :Headphones
Quiz :What are the advantages and disadvantage of manual testing? -
Answer :Least expensive; Controlled by examiner and operator error.
Quiz :What are the air conduction symbols for the left and right ear? - Answer
:X for left and O for right
Quiz :What is the most common audiometric configuration for people who
work in noisy environments? - Answer :High frequency sloping sensorineural
hearing loss
Quiz :When should the calibration of sound measuring equipment be
checked? - Answer :Before and after use.
Quiz :Before taking any measurements, what are three indications that noise
levels in the work environment are greater than 85 DBA? - Answer :Difficulty
communicating at three feet, tinnitus, dullness of hearing or temporary
threshold shift.
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