1|Page
CAOHC EXAM WITH COMPLETE QUESTIONS
AND CORRECT VERIFIED ANSWERS (DETAILED
ANSWERS) ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS!!!
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
,2|Page
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
,3|Page
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
, 4|Page
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
CAOHC EXAM WITH COMPLETE QUESTIONS
AND CORRECT VERIFIED ANSWERS (DETAILED
ANSWERS) ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS!!!
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
,2|Page
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
,3|Page
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
, 4|Page
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
