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CAOHC EXAM QUESTIONS AND ANSWERS
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CAOHC EXAM QUESTIONS AND ANSWERS
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CAOHC EXAM QUESTIONS AND ANSWERSWhat is the mission of CAOHC? - Answers- -promote best practices in hearing
conservation worldwide and promote HL prevention thru training, guidance and support
What are the professional disciplines represented on CAOHC? - Answers- OHC's,
CD's, PS's
Who are the people that work w OHC? - Answers- -occupational health nurse,
audiologist, noise control engineer, physician, safety and health specialist, company
management
What are the elements of an effective hearing conservation program? - Answers- -noise
monitoring, noise control, employee training, audiometric testing, hearing protection and
recordkeeping
What does the outer ear do? - Answers- collects/ funnels sound
What does the middle ear do? - Answers- Convert sound waves to mechanical energy
dB is - Answers- amplitude/ loudness/ intensity
why is noise measured w an A weighted filter at work - Answers- it imitates how the
human ear responds to sound
What is TWA? - Answers- time weighted average- the noise exposure averaged over
an 8 hr period
what is the OSHA 5 dB exchange rate? - Answers- every 5 dB increase you can b
around the sound for half the time (85 dB for 8 hrs, 90 dB for 4)
What are the federal regulators w a hearing conservation policy? - Answers- MSHA-
mine safety and health administration
FRA- federal railroad administration
DoD- department of defense
OSHA- occupational safety and health administration
*NIOSH - DOESNT REGULATE
how to state regulations differ from federal? - Answers- -more strict bc has to b
approved and monitored by OSHA
What are the 6 elements of the OSHA hearing conservation regulation? - Answers- -
noise control, noise monitoring, audiometric testing, hearing protection, employee
training, recordkeeping
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