CAOHC Exam Prep Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025)
hertz is a unit of: - Correct Answers ✅sound frequency
decibel is a unit of: - Correct Answers ✅sound intensity
the frequency of sound is perceived as: - Correct Answers
✅pitch what is the first thing you should do when fitting earplugs? - Correct Answers ✅a. pull the top of the ear to align the ear canal
- roll the earplug down into a tight, crease-free cylinder
- CHECK THE EAR CANAL FOR ANY OCCLUSIONS
- 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: - Correct Answers ✅true
what type of hearing loss can be attributed to noise? - Correct Answers ✅sensorineural what is the frequency range of speech sounds? - Correct Answers ✅250-4000 Hz 1 / 4
CAOHC Exam Prep Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025) OSHA requires exhaustive calibration if there is a deviation of
greater than or equal to 15 dB: - Correct Answers ✅true
the range of normal hearing is: - Correct Answers ✅0-25
dB
intermittent noise is noise that: - Correct Answers ✅a.
does not end
- FLUCTUATES IN SOUND LEVEL WITH PERIODIC
INTERRUPTIONS OF RELATIVE QUIET
- rises continuously
- has been abated through the implementation of
- none of the above
engineering controls
functional hearing loss is also known as pseudohypacusis: -
Correct Answers ✅true conventional earplugs typically reduce high frequency noise
more than low-frequency noise: - Correct Answers ✅true
OSHA allows retests to be substituted for original tests if done within how many days of the original test? - Correct Answers ✅30 days 2 / 4
CAOHC Exam Prep Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025)
administrative controls to limit noise exposure to include: -
Correct Answers ✅limiting the time a worker spends at a noise source when a worker's exposure level reaches the "action level",
the employer must: - Correct Answers ✅include the worker
in a hearing conservation program what components does OSHA require for worker training? -
Correct Answers ✅a: effects of noise on hearing
b: purpose of hearing protectors
c: purpose of hearing testing
d: instructions on selecting and fitting protectors
- ALL OF THE ABOVE
what is the document that OSHA requires to report hearing loss incidents? - Correct Answers ✅form 300
the missions of CAOHC include: - Correct Answers
✅guiding industry on successful implementation of hearing conservation programs 3 / 4
CAOHC Exam Prep Questions and Verified Answers, 100% Score Guarantee Pass (Latest 2025)
NIHL typically affects: - Correct Answers ✅higher
frequencies first what is the term for temporary hearing loss after noise exposure? - Correct Answers ✅temporary threshold shift which of the following is NOT an occupational noise regulatory body? - Correct Answers ✅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: - Correct Answers
✅true which of the following is NOT one of NIOSH's "5 Cs of HPDs"
to describe the barriers of protective devices: - Correct
Answers ✅a. comfort
- CARE
- convenience
- communication
- cost
- / 4