CAOHC TEST ALL PAPERS 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔in addition to the OSHA requirements, the FRA requires what datum on
audiograms? - ✔✔a. worker gender
b. AUDIOMETER MODEL
c. examiner CAOHC number
d. HCP professional supervisor name
e. audiometric room certification date
✔✔OHC's should suggest likely pathologies for a hearing loss only if asked by subjects:
- ✔✔false
✔✔which of the following is NOT a common non-occupational source of harmful noise?
- ✔✔a. motorcycles
b. carpentry
c. guns
d. lawn equipment
e. NONE OF THE ABOVE
✔✔which of the following is a disadvantage of foam plugs? - ✔✔a. doesn't work well
with hard hats
b. MUST BE INSERTED WITH CLEAN HANDS
c. doesn't fit larger ear canals
d. must be washed frequency
e. all of the above
✔✔swimmer's ear is an example of mixed hearing loss: - ✔✔false
✔✔what factors influence the effectiveness of hearing protectors? - ✔✔a. temperature
b. radio frequencies
c. particles
d. solvents
e. ALL OF THE ABOVE
✔✔which of the following is a disadvantage of using earmuffs? - ✔✔a. they come in
only one size
b. supervisors cannot easily determine if they are being worn properly
c. HEADBAND PRESSURE CAN BE UNCOMFORTABLE
d. all of the above
e. none of the above
✔✔ambient noise above permissible levels during hearing testing may: - ✔✔a. increase
the number of STS
b. alter test thresholds
, c. distract test subjects
d. ALL OF THE ABOVE
e. none of the above
✔✔if a worker fails to respond to soft tones, whisper audiometry should be employed: -
✔✔false
✔✔only workers exposed to the permissible exposure limit need to be included in
hearing conservation programs: - ✔✔false
✔✔OHC's should alert the professional supervisor to problem audiograms: - ✔✔true
✔✔which is the following is NOT a medical condition of the outer ear? - ✔✔a. wax
impaction
b. collapsed ear canal
c. external otitis
d. all of the above
e. NONE OF THE ABOVE
✔✔which of the following is NOT information to collect for an aural history? - ✔✔a.
occurrence of measles
b. MARIJUANA USE
c. occurrence of chronic ear infection
d. motorcycle use
e. military service
✔✔during audiometry, the workers should be seated so they may see the OHC's
activities: - ✔✔false
✔✔OSHA's 1910.95 regulation requires written notification of a Standard Threshold
Shift within how many days? - ✔✔21 days
✔✔acoustic neuromas can manifest as an asymmetric or unilateral hearing loss: -
✔✔true
✔✔what is the proper order of steps when inserting foam earplugs? - ✔✔1. prepare
earplug
2. open ear canal
3. insert earplug
✔✔if daily calibration threshold is off by more than 5 dB, the audiometer must be
acoustically calibrated: - ✔✔true
✔✔pre-molded earplugs are designed to be worn only once: - ✔✔false
SOLUTIONS RATED A+
✔✔in addition to the OSHA requirements, the FRA requires what datum on
audiograms? - ✔✔a. worker gender
b. AUDIOMETER MODEL
c. examiner CAOHC number
d. HCP professional supervisor name
e. audiometric room certification date
✔✔OHC's should suggest likely pathologies for a hearing loss only if asked by subjects:
- ✔✔false
✔✔which of the following is NOT a common non-occupational source of harmful noise?
- ✔✔a. motorcycles
b. carpentry
c. guns
d. lawn equipment
e. NONE OF THE ABOVE
✔✔which of the following is a disadvantage of foam plugs? - ✔✔a. doesn't work well
with hard hats
b. MUST BE INSERTED WITH CLEAN HANDS
c. doesn't fit larger ear canals
d. must be washed frequency
e. all of the above
✔✔swimmer's ear is an example of mixed hearing loss: - ✔✔false
✔✔what factors influence the effectiveness of hearing protectors? - ✔✔a. temperature
b. radio frequencies
c. particles
d. solvents
e. ALL OF THE ABOVE
✔✔which of the following is a disadvantage of using earmuffs? - ✔✔a. they come in
only one size
b. supervisors cannot easily determine if they are being worn properly
c. HEADBAND PRESSURE CAN BE UNCOMFORTABLE
d. all of the above
e. none of the above
✔✔ambient noise above permissible levels during hearing testing may: - ✔✔a. increase
the number of STS
b. alter test thresholds
, c. distract test subjects
d. ALL OF THE ABOVE
e. none of the above
✔✔if a worker fails to respond to soft tones, whisper audiometry should be employed: -
✔✔false
✔✔only workers exposed to the permissible exposure limit need to be included in
hearing conservation programs: - ✔✔false
✔✔OHC's should alert the professional supervisor to problem audiograms: - ✔✔true
✔✔which is the following is NOT a medical condition of the outer ear? - ✔✔a. wax
impaction
b. collapsed ear canal
c. external otitis
d. all of the above
e. NONE OF THE ABOVE
✔✔which of the following is NOT information to collect for an aural history? - ✔✔a.
occurrence of measles
b. MARIJUANA USE
c. occurrence of chronic ear infection
d. motorcycle use
e. military service
✔✔during audiometry, the workers should be seated so they may see the OHC's
activities: - ✔✔false
✔✔OSHA's 1910.95 regulation requires written notification of a Standard Threshold
Shift within how many days? - ✔✔21 days
✔✔acoustic neuromas can manifest as an asymmetric or unilateral hearing loss: -
✔✔true
✔✔what is the proper order of steps when inserting foam earplugs? - ✔✔1. prepare
earplug
2. open ear canal
3. insert earplug
✔✔if daily calibration threshold is off by more than 5 dB, the audiometer must be
acoustically calibrated: - ✔✔true
✔✔pre-molded earplugs are designed to be worn only once: - ✔✔false
