DOEHRS-HC TRAINING, DOEHRS
EXAM TEST QUESTIONS WITH
ANSWERS 100% PASS
Which Occupational sector accounts for the highest incidence of noise-induced hearing
loss?—ANSWER--Manufacturing
Noise exposures are considered likely to be harmful if shouting is required in order to
communicate to a person ___ feet away.—ANSWER--3
The primary role of CAOHC is?—ANSWER--Advocate for comprehensive programs that
promote best practices in occupational hearing conservation.
Non-auditory effects of unprotected exposure to hazardous noise include all of the
following, except:—ANSWER--Tinnitus
The seven elements of a model hearing conservation program are:—ANSWER--Noise
measurement, noise control, audiometric monitoring, hearing protection, worker training,
recordkeeping, program evaluation
Frequency of sound is perceived as?—ANSWER--pitch
A decibel is a unit of sound ___ ?—ANSWER--intensity
The term Hertz describes the _____ of sound?—ANSWER--frequency
, ________ _________ reflects the relationship between the allowable exposure time and the
noise intensity level.—ANSWER--action level
Impulse noise becomes hazardous at _____.—ANSWER--140 dBP
A biological calibration check should be completed __________?—ANSWER--daily prior to
audiometric testing
Excessive ambient noise can artificially increase hearing thresholds, especially at ____ Hz.—
ANSWER--500
Which of the following is NOT an advantage of using a manual audiometer?—ANSWER--
examiner error
Which of the following is NOT a way to reduce booth ambient noise levels?—ANSWER--swap
out headphones
Which is NOT an advantage of a microprocessor audiometer?—ANSWER--greater examiner
control
The three tiny bones in the middle ear collectively form the _________?—ANSWER--
ossicular chain
The bones of the middle ear are the (select best answer)?—ANSWER--malleus, incus, stapes
Which part of the ear is affected by hazardous noise exposures?—ANSWER--inner ear
What is the primary function of the inner ear?—ANSWER--transmit a nerve impulse to the
brain
What type of hearing loss results from cerumen impaction?—ANSWER--conductive hearing
loss
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
EXAM TEST QUESTIONS WITH
ANSWERS 100% PASS
Which Occupational sector accounts for the highest incidence of noise-induced hearing
loss?—ANSWER--Manufacturing
Noise exposures are considered likely to be harmful if shouting is required in order to
communicate to a person ___ feet away.—ANSWER--3
The primary role of CAOHC is?—ANSWER--Advocate for comprehensive programs that
promote best practices in occupational hearing conservation.
Non-auditory effects of unprotected exposure to hazardous noise include all of the
following, except:—ANSWER--Tinnitus
The seven elements of a model hearing conservation program are:—ANSWER--Noise
measurement, noise control, audiometric monitoring, hearing protection, worker training,
recordkeeping, program evaluation
Frequency of sound is perceived as?—ANSWER--pitch
A decibel is a unit of sound ___ ?—ANSWER--intensity
The term Hertz describes the _____ of sound?—ANSWER--frequency
, ________ _________ reflects the relationship between the allowable exposure time and the
noise intensity level.—ANSWER--action level
Impulse noise becomes hazardous at _____.—ANSWER--140 dBP
A biological calibration check should be completed __________?—ANSWER--daily prior to
audiometric testing
Excessive ambient noise can artificially increase hearing thresholds, especially at ____ Hz.—
ANSWER--500
Which of the following is NOT an advantage of using a manual audiometer?—ANSWER--
examiner error
Which of the following is NOT a way to reduce booth ambient noise levels?—ANSWER--swap
out headphones
Which is NOT an advantage of a microprocessor audiometer?—ANSWER--greater examiner
control
The three tiny bones in the middle ear collectively form the _________?—ANSWER--
ossicular chain
The bones of the middle ear are the (select best answer)?—ANSWER--malleus, incus, stapes
Which part of the ear is affected by hazardous noise exposures?—ANSWER--inner ear
What is the primary function of the inner ear?—ANSWER--transmit a nerve impulse to the
brain
What type of hearing loss results from cerumen impaction?—ANSWER--conductive hearing
loss
© 2026 Copyright. All Rights Reserved. This document is
protected by copyright law, Copyrighted By Brittie Donald
