CAOHC FINAL PAPER 2026 QUESTIONS WITH
FULL SOLUTION GRADED A+
◉ pre-molded earplugs are designed to be worn only once: Answer:
false
◉ flat hearing loss can be caused by which of the following? Answer:
a. equipment malfunction
b. worker response error
c. intentionally not responding to tones to simulate a loss
d. conductive pathology
e. ALL OF THE ABOVE
◉ 29 CFR 1910.95 is an example of a standard, not a regulation:
Answer: false
◉ type 2 sound level meters are more precise than type 1: Answer:
false
◉ prior to testing, the OHC should instruct the subject as to the
purpose of the test: Answer: true
,◉ compliance with OSHA regulations implies that NIHL prevention
best practices have been followed: Answer: false
◉ microprocessor audiometers offer many advantages to manual
audiometry: Answer: true
◉ if the diaphragm of the headphones is not positioned over the ear
canal, response to high frequency may be affected: Answer: true
◉ for otoscopy the OHC should select the largest speculum that will
fit in the ear canal: Answer: true
◉ an accurate STS calculation must not include age correction:
Answer: false
◉ NIOSH creates regulations, whereas OSHA creates
recommendations: Answer: false
◉ which of the following is a common long lasting impact of NIHL:
Answer: a. tinnitus
b. social withdrawal
c. difficulty understanding conversations in background noise
d. high-frequency hearing loss
e. ALL OF THE ABOVE
, ◉ banded earplugs are designed to be disposed of after one use:
Answer: false
◉ what term does hearing protector packaging use to indicate noise
attenuation? Answer: a. NOISE REDUCTION RATING
b. sound dampening level
c. noise adjustment rating
d. sound abatement level
e. noise protection rating
◉ engineering controls to limit noise exposure include which of the
following? Answer: a. lubricating machinery
b. enclosing the noise source
c. changing to lower-noise tools and machinery
d. erecting barriers between the noise source and worker
e. ALL OF THE ABOVE
◉ when using earplugs, it's always best to use those that reduce as
much noise as possible: Answer: false
◉ what is 100% noise dose? Answer: a. the recommended daily
allowance
FULL SOLUTION GRADED A+
◉ pre-molded earplugs are designed to be worn only once: Answer:
false
◉ flat hearing loss can be caused by which of the following? Answer:
a. equipment malfunction
b. worker response error
c. intentionally not responding to tones to simulate a loss
d. conductive pathology
e. ALL OF THE ABOVE
◉ 29 CFR 1910.95 is an example of a standard, not a regulation:
Answer: false
◉ type 2 sound level meters are more precise than type 1: Answer:
false
◉ prior to testing, the OHC should instruct the subject as to the
purpose of the test: Answer: true
,◉ compliance with OSHA regulations implies that NIHL prevention
best practices have been followed: Answer: false
◉ microprocessor audiometers offer many advantages to manual
audiometry: Answer: true
◉ if the diaphragm of the headphones is not positioned over the ear
canal, response to high frequency may be affected: Answer: true
◉ for otoscopy the OHC should select the largest speculum that will
fit in the ear canal: Answer: true
◉ an accurate STS calculation must not include age correction:
Answer: false
◉ NIOSH creates regulations, whereas OSHA creates
recommendations: Answer: false
◉ which of the following is a common long lasting impact of NIHL:
Answer: a. tinnitus
b. social withdrawal
c. difficulty understanding conversations in background noise
d. high-frequency hearing loss
e. ALL OF THE ABOVE
, ◉ banded earplugs are designed to be disposed of after one use:
Answer: false
◉ what term does hearing protector packaging use to indicate noise
attenuation? Answer: a. NOISE REDUCTION RATING
b. sound dampening level
c. noise adjustment rating
d. sound abatement level
e. noise protection rating
◉ engineering controls to limit noise exposure include which of the
following? Answer: a. lubricating machinery
b. enclosing the noise source
c. changing to lower-noise tools and machinery
d. erecting barriers between the noise source and worker
e. ALL OF THE ABOVE
◉ when using earplugs, it's always best to use those that reduce as
much noise as possible: Answer: false
◉ what is 100% noise dose? Answer: a. the recommended daily
allowance
