CAOHC Practice Exam Questions and Answers –
Complete Occupational Hearing Conservation Study
Guide
Introduction:
This document contains the complete collection of practice questions
and verified answers for the Council for Accreditation in
Occupational Hearing Conservation (CAOHC) certification exam. It
covers all major topics including audiometric testing, noise
monitoring, hearing protection devices (HPDs), OSHA and NIOSH
regulations, calibration procedures, and standard threshold shift
(STS) analysis. The guide also reviews core hearing conservation
concepts such as noise exposure limits, administrative controls,
recordkeeping, and employee training. Perfect for occupational health
professionals, audiometric technicians, and safety managers
preparing for CAOHC certification or refresher training.
Exam Questions and Answers
Administrative controls to limit noise exposure include which of the
following?
A. Limiting the time a worker spends at a noise source
B. Enclosing the noise source
C. Changing to lower-noise tools and machinery
D. Erecting barriers between noise source and worker
,E. All of the above --- correct precise answer ---A. Limiting the time
a worker spends at a noise source
What is the document OSHA requires to report hearing loss
incidents?
A. OSHA Recordable Form 17-B
B. Annual Reporting Form
C. Hearing Loss Incident Log
D. Audiometric Injury Log 19-A
E. Form 300 --- correct precise answer ---E. Form 300
OSHA defines a 'persistent STS' as an STS lasting more than:
A. 21 days
B. 30 days
C. 45 days
D. 60 days
E. None of the above --- correct precise answer ---E. None of the
above
Hearing tests do not have to be conducted in a sound booth as long
as maximum allowable ambient noise levels aren't exceeded.
,A. True
B. False --- correct precise answer ---A. True
If a daily calibration threshold is off by more than 5 dB, the
audiometer must be acoustically calibrated.
A. True
B. False --- correct precise answer ---A. True
For best results, worker training procedures should be evaluated
for effectiveness and revised according to findings.
A. True
B. False --- correct precise answer ---A. True
For how many years does OSHA require audiogram records be kept?
A. 1
B. 2
C. 5
D. Duration of employment
, E. OSHA does not specify the time --- correct precise answer ---D.
Duration of employment
NIOSH recommends against using age correction:
A. True
B. False --- correct precise answer ---A. True
What term does hearing protector packaging use to indicate noise
attenuation?
A. Noise Reduction Rating
B. Sound Dampening Level
C. Noise Adjustment Rating
D. Sound Abatement Level
E. Noise Protection Rating --- correct precise answer ---A. Noise
Reduction Rating
Daily biological checks should include a listening check of the
audiometer?
A. True
B. False --- correct precise answer ---A. True
Complete Occupational Hearing Conservation Study
Guide
Introduction:
This document contains the complete collection of practice questions
and verified answers for the Council for Accreditation in
Occupational Hearing Conservation (CAOHC) certification exam. It
covers all major topics including audiometric testing, noise
monitoring, hearing protection devices (HPDs), OSHA and NIOSH
regulations, calibration procedures, and standard threshold shift
(STS) analysis. The guide also reviews core hearing conservation
concepts such as noise exposure limits, administrative controls,
recordkeeping, and employee training. Perfect for occupational health
professionals, audiometric technicians, and safety managers
preparing for CAOHC certification or refresher training.
Exam Questions and Answers
Administrative controls to limit noise exposure include which of the
following?
A. Limiting the time a worker spends at a noise source
B. Enclosing the noise source
C. Changing to lower-noise tools and machinery
D. Erecting barriers between noise source and worker
,E. All of the above --- correct precise answer ---A. Limiting the time
a worker spends at a noise source
What is the document OSHA requires to report hearing loss
incidents?
A. OSHA Recordable Form 17-B
B. Annual Reporting Form
C. Hearing Loss Incident Log
D. Audiometric Injury Log 19-A
E. Form 300 --- correct precise answer ---E. Form 300
OSHA defines a 'persistent STS' as an STS lasting more than:
A. 21 days
B. 30 days
C. 45 days
D. 60 days
E. None of the above --- correct precise answer ---E. None of the
above
Hearing tests do not have to be conducted in a sound booth as long
as maximum allowable ambient noise levels aren't exceeded.
,A. True
B. False --- correct precise answer ---A. True
If a daily calibration threshold is off by more than 5 dB, the
audiometer must be acoustically calibrated.
A. True
B. False --- correct precise answer ---A. True
For best results, worker training procedures should be evaluated
for effectiveness and revised according to findings.
A. True
B. False --- correct precise answer ---A. True
For how many years does OSHA require audiogram records be kept?
A. 1
B. 2
C. 5
D. Duration of employment
, E. OSHA does not specify the time --- correct precise answer ---D.
Duration of employment
NIOSH recommends against using age correction:
A. True
B. False --- correct precise answer ---A. True
What term does hearing protector packaging use to indicate noise
attenuation?
A. Noise Reduction Rating
B. Sound Dampening Level
C. Noise Adjustment Rating
D. Sound Abatement Level
E. Noise Protection Rating --- correct precise answer ---A. Noise
Reduction Rating
Daily biological checks should include a listening check of the
audiometer?
A. True
B. False --- correct precise answer ---A. True
