Exam (elaborations)
CAOHC Exam Prep Questions & Answers(RATED A+)
- Module
- Institution
hertz is a unit of: - ANSWER sound frequency decibel is a unit of: - ANSWER sound intensity the frequency of sound is perceived as: - ANSWER pitch
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CAOHC Exam Prep Questions &Answers(RATED A+)
hertz is a unit of: - ANSWER sound frequency
decibel is a unit of: - ANSWER sound intensity
the frequency of sound is perceived as: - ANSWER pitch
what is the first thing you should do when fitting earplugs? - ANSWER 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: - ANSWER true
what type of hearing loss can be attributed to noise? - ANSWER sensorineural
what is the frequency range of speech sounds? - ANSWER 250-4000 Hz
OSHA requires exhaustive calibration if there is a deviation of greater than or equal to
15 dB: - ANSWER true
the range of normal hearing is: - ANSWER 0-25 dB
intermittent noise is noise that: - ANSWER 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
functional hearing loss is also known as pseudohypacusis: - ANSWER true
conventional earplugs typically reduce high frequency noise more than low-frequency
noise: - ANSWER true
OSHA allows retests to be substituted for original tests if done within how many days of
the original test? - ANSWER 30 days
administrative controls to limit noise exposure to include: - ANSWER limiting the time a
worker spends at a noise source
, when a worker's exposure level reaches the "action level", the employer must: -
ANSWER include the worker in a hearing conservation program
what components does OSHA require for worker training? - ANSWER a: effects of
noise on hearing
b: purpose of hearing protectors
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? - ANSWER
form 300
the missions of CAOHC include: - ANSWER guiding industry on successful
implementation of hearing conservation programs
NIHL typically affects: - ANSWER higher frequencies first
what is the term for temporary hearing loss after noise exposure? - ANSWER temporary
threshold shift
which of the following is NOT an occupational noise regulatory body? - ANSWER a.
FRA
b: MSHA
C: CDC
d: OSHA
e: NIOSH
in order to apply age correction to STS calculations, the worker's age and sex are
required: - ANSWER true
which of the following is NOT one of NIOSH's "5 Cs of HPDs" to describe the barriers of
protective devices: - ANSWER a. comfort
b. CARE
c. convenience
d. communication
e. cost
when should a baseline test be performed (ideally)? - ANSWER a. BEFORE THE
WORKER'S SHIFT
b. in the middle of the worker's shift
c. after the worker's shift
the middle ear is the primary site of damage due to hearing loss: - ANSWER false
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