Exam (elaborations)
CAOHC TEST EXAM QUESTIONS AND ANSWERS 2024
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CAOHC TEST EXAM QUESTIONS AND ANSWERS 2024
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CAOHC TEST EXAMWhat serves as the basis for all other U.S hearing conservation regulations and
thus is the basis for the OHC course instruction. - ANSWERS-OSHA Amendment
(29 CFR 1910.95)
What are indications for manual audiometry? - ANSWERS-Slow/inappropriate
responses, no response, unilateral hearing loss, and functional hearing loss.
What is the pace at which pure tones should be presented? - ANSWERS-between
1-2 seconds
State and local requirements must what? - ANSWERS-Meet or exceed federally
mandated HC requirements. (be equal or more strict)
Background noise can affect what? - ANSWERS-Low frequencies 500 Hz and
below.
What is an indication for a special testing situation? - ANSWERS-Claustrophobia
Acoustic calibrations must be done? - ANSWERS-Yearly
Functionaly and biological checks are part of what? - ANSWERS-Daily calibration
, What is an advantage of using a microprocessor versus a manual audiometer? -
ANSWERS-The ability to test multiple people at one time
What is the quiet peroid baseline before testing? - ANSWERS-14 hrs
When trouble shooting an audiometric booth, or isolating noise sources who or
whom should one turn to? - ANSWERS-Acoustical engineer
The highest amount of noise suuposedly an employee may be exposed to without
incurring the risk of adverse health effects is known as the? - ANSWERS-Time
weighted average (TWA)
What should one wear double hpd? - ANSWERS-104-108dB
A laboratory value assigned to the individual porduct and not a reflection of what
kind of attenuation the worker will ultimately recieve is called? - ANSWERS-NRR
What are the OSHA regulations for exchange rates associated with TWAs? -
ANSWERS-5 dB
What are the NIOSH recommendations for exchange rates associated with with
TWAs? - ANSWERS-3 dB
Confirmation of an STS must take place within? - ANSWERS-21 days
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