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CAOHC Exam Prep with 100% correct answers Update 2024
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CAOHC Exam Prep with 100% correct answers Update 2024
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CAOHC Exam Prep with 100%correct answers Update 2024
hertz is a unit of: - answers-sound frequency
decibel is a unit of: - answers-sound intensity
the frequency of sound is perceived as: - answers-pitch
what is the first thing you should do when fitting
earplugs? - answers-a. pull the top of the ear to align
the ear canal
b. roll the earplug down into a tight, crease-free
cylinder
c. CHECK THE EAR CANAL FOR ANY OCCLUSIONS
d. insert the earplug deep into the ear canal
hearing tests do not have to be conducted in a sound
booth as long as maximum allowable ambient noise
levels aren't exceeded: - answers-true
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,what type of hearing loss can be attributed to noise? -
answers-sensorineural
what is the frequency range of speech sounds? -
answers-250-4000 Hz
OSHA requires exhaustive calibration if there is a
deviation of greater than or equal to 15 dB: - answers-
true
the range of normal hearing is: - answers-0-25 dB
intermittent noise is noise that: - answers-a. does not
end
b. FLUCTUATES IN SOUND LEVEL WITH PERIODIC
INTERRUPTIONS OF RELATIVE QUIET
c. rises continuously
d. has been abated through the implementation of
engineering controls
e. none of the above
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,functional hearing loss is also known as
pseudohypacusis: - answers-true
conventional earplugs typically reduce high frequency
noise more than low-frequency noise: - answers-true
OSHA allows retests to be substituted for original tests
if done within how many days of the original test? -
answers-30 days
administrative controls to limit noise exposure to
include: - answers-limiting the time a worker spends at
a noise source
when a worker's exposure level reaches the "action
level", the employer must: - answers-include the
worker in a hearing conservation program
what components does OSHA require for worker
training? - answers-a: effects of noise on hearing
b: purpose of hearing protectors
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, c: purpose of hearing testing
d: instructions on selecting and fitting protectors
e. ALL OF THE ABOVE
what is the document that OSHA requires to report
hearing loss incidents? - answers-form 300
the missions of CAOHC include: - answers-guiding
industry on successful implementation of hearing
conservation programs
NIHL typically affects: - answers-higher frequencies first
what is the term for temporary hearing loss after noise
exposure? - answers-temporary threshold shift
which of the following is NOT an occupational noise
regulatory body? - answers-a. FRA
b: MSHA
C: CDC
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