DOD HEARING TECHNICIAN
TR-SERVICE CERTIFICATION COURSE
According to DoD standards, when must an audiometry baseline be established? -
ANS-ASAP after entering active duty, prior to any noise exposure, at first duty station; for
DoD civilians, baseline must be established prior to exposure to hazardous noise
\According to DoD, how often must an exhaustive electroacoustic calibration take place? -
ANS-annually
\According to NIOSH standards, when must an audiometry baseline be established? -
ANS-within 30 days of noise exposure
\According to OSHA standards, when must an audiometry baseline be established? -
ANS-within 6 months unless a mobile testing service is used, then 12 months
\According to OSHA, how often must an exhaustive electroacoustic calibration take place? -
ANS-every 2 years
\At what dB must employers ensure HPDs remain? - ANS-90dB(A) or below
\Do audiometric booths need to be "soundproof"? - ANS-no, however they cannot exceed
the DOD allowable levels
\During a manual test, at what increment should you increase stimuli until the patient
responds? - ANS-20 dB
\During patient intake, all the following questions should be asked EXCEPT:
a. current auditory complaints
b. changes in health or medications
c. occupational/non occupational noise exposure
d. HPD use
e. family history questions - ANS-e. family history questions
GINA prevents family history questions from being asked
\For a functional listening check, what dB tone begins on the left ear? - ANS-60 dB
\For a manual test, at how many dB should you present initial stimuli? - ANS-30 dB
\Hair cells responsible for high frequencies are located near what part of the cochlea? -
ANS-the base
\Hearing thresholds for the current test average at what dB at 2, 3, 4 kHz indicate recordable
hearing loss? - ANS-25dB or greater
\How does noise induced illness occur? - ANS-gradually over time from repeated exposures
\How does noise induced injury occur? - ANS-occurs from one significant exposure or event
\How is frequency measured? - ANS-measured in hertz (Hz)
\How long must all tones be presented for during a non-manual test? - ANS-1-2 seconds
\How long must DD Form 2214 be kept? - ANS-for the duration of individual's employment
plus 30 years
\How long must DD Form 2217 be kept? - ANS-5 years
\How much should volume decrease if patient responds? - ANS-10dB
\How much should volume increase if patient does NOT respond? - ANS-5 dB
\How often are calibration and functional checks to be performed? - ANS-at the start of every
TEST day
, \How often is a DD Form 2216 required? - ANS-annually, pre/post deployment, or when a
follow-up is required
\How often must hearing techs recertify? - ANS-every 5 yrs.
\How often must OHC education be provided? - ANS-annually for all employees
\How often must the DD Form 2217 be printed for exported? - ANS-monthly
\IAW DODI 6055.12 3.7(b) what training is required for all military personal? - ANS-effects of
noise on hearing, purpose of HPDs/proper use and fit, importance of using HPDs when
exposed to hazardous noise on/off duty
\In numeri's, what is considering a normal hearing range? - ANS--10-25 dBHL
\In regards to infection control, what three things must be considered? - ANS-not using harsh
chemicals/alcohol, keeping moisture away from earphone diaphragm, and ensuring
earphones are DRY before use
\Less important (weight) is given to which type of frequency? - ANS-lower frequencies
\OHSA requires what HPDs and how many to be available to employees? - ANS-ear plugs
or earmuffs; two must be available to employees
\On average, is an STS visible on an audiogram? - ANS-when there is a 10 dB or greater
decrease at 2, 3,or 4kHz from applicable reference
\otitis externa is - ANS-an infection of the outer ear, swimmer's ear, a cause for conductive
hearing loss
\Sensorineural hearing loss from noise exposure will cause damage to hair cells located in
which of the following ranges? - ANS-3000-6000 Hz
\Single HPD are to be used when the impulse noise is at what dB - ANS-less than 140 dB(P)
\Single HPDs are to be used when the steady state noise is at what TWA? - ANS-less than
85 dB(A) TWA
\The inner ear hair cells are most vulnerable to damage when the ear is exposed to: -
ANS-excessive noise
\The middle ear is an air-filled space that contains what? - ANS-ossicles or middle ear bones
\To establish calibration baselines what number must be achieved for 500-4000Hz? -
ANS-plus or minus 5
\To establish calibration baselines what number must be achieved for 6000Hz? - ANS-plus
or minus 10
\Unprotected exposure to hazardous noise can cause the following: - ANS-temporary
hearing loss, permanent hearing loss, and/or tinnitus
\What actions should be taken when sudden hearing loss appears on an audiogram? -
ANS-refer immediately as time to treatment is critical; ALWAYS a medical emergency
\What are administrative controls? - ANS-controls that involve changes in worker schedules
or process schedules to reduce noise exposure
\What are auditory effects of noise exposure? - ANS-loss of hearing sensitivity, tinnitus,
missing parts of conversation, slower, inaccurate auditory localization, increased errors or
safety mishaps
\What are diseases related to hearing loss? - ANS-measles, mumps, and meniere's disease
\What are engineering controls? - ANS-controls that reduce the sound at the source or
intercept sound along its path to reduce the noise that reaches the work
\What are non auditory effects of noise exposure? - ANS-high blood pressure, increased
heart rate, increase stress hormone levels, disrupt healthy sleep patterns, possible
reassignment to different MOS, embarrassment frustration or withdrawal
\What are ototoxins? - ANS-toxins that cause hearing loss
TR-SERVICE CERTIFICATION COURSE
According to DoD standards, when must an audiometry baseline be established? -
ANS-ASAP after entering active duty, prior to any noise exposure, at first duty station; for
DoD civilians, baseline must be established prior to exposure to hazardous noise
\According to DoD, how often must an exhaustive electroacoustic calibration take place? -
ANS-annually
\According to NIOSH standards, when must an audiometry baseline be established? -
ANS-within 30 days of noise exposure
\According to OSHA standards, when must an audiometry baseline be established? -
ANS-within 6 months unless a mobile testing service is used, then 12 months
\According to OSHA, how often must an exhaustive electroacoustic calibration take place? -
ANS-every 2 years
\At what dB must employers ensure HPDs remain? - ANS-90dB(A) or below
\Do audiometric booths need to be "soundproof"? - ANS-no, however they cannot exceed
the DOD allowable levels
\During a manual test, at what increment should you increase stimuli until the patient
responds? - ANS-20 dB
\During patient intake, all the following questions should be asked EXCEPT:
a. current auditory complaints
b. changes in health or medications
c. occupational/non occupational noise exposure
d. HPD use
e. family history questions - ANS-e. family history questions
GINA prevents family history questions from being asked
\For a functional listening check, what dB tone begins on the left ear? - ANS-60 dB
\For a manual test, at how many dB should you present initial stimuli? - ANS-30 dB
\Hair cells responsible for high frequencies are located near what part of the cochlea? -
ANS-the base
\Hearing thresholds for the current test average at what dB at 2, 3, 4 kHz indicate recordable
hearing loss? - ANS-25dB or greater
\How does noise induced illness occur? - ANS-gradually over time from repeated exposures
\How does noise induced injury occur? - ANS-occurs from one significant exposure or event
\How is frequency measured? - ANS-measured in hertz (Hz)
\How long must all tones be presented for during a non-manual test? - ANS-1-2 seconds
\How long must DD Form 2214 be kept? - ANS-for the duration of individual's employment
plus 30 years
\How long must DD Form 2217 be kept? - ANS-5 years
\How much should volume decrease if patient responds? - ANS-10dB
\How much should volume increase if patient does NOT respond? - ANS-5 dB
\How often are calibration and functional checks to be performed? - ANS-at the start of every
TEST day
, \How often is a DD Form 2216 required? - ANS-annually, pre/post deployment, or when a
follow-up is required
\How often must hearing techs recertify? - ANS-every 5 yrs.
\How often must OHC education be provided? - ANS-annually for all employees
\How often must the DD Form 2217 be printed for exported? - ANS-monthly
\IAW DODI 6055.12 3.7(b) what training is required for all military personal? - ANS-effects of
noise on hearing, purpose of HPDs/proper use and fit, importance of using HPDs when
exposed to hazardous noise on/off duty
\In numeri's, what is considering a normal hearing range? - ANS--10-25 dBHL
\In regards to infection control, what three things must be considered? - ANS-not using harsh
chemicals/alcohol, keeping moisture away from earphone diaphragm, and ensuring
earphones are DRY before use
\Less important (weight) is given to which type of frequency? - ANS-lower frequencies
\OHSA requires what HPDs and how many to be available to employees? - ANS-ear plugs
or earmuffs; two must be available to employees
\On average, is an STS visible on an audiogram? - ANS-when there is a 10 dB or greater
decrease at 2, 3,or 4kHz from applicable reference
\otitis externa is - ANS-an infection of the outer ear, swimmer's ear, a cause for conductive
hearing loss
\Sensorineural hearing loss from noise exposure will cause damage to hair cells located in
which of the following ranges? - ANS-3000-6000 Hz
\Single HPD are to be used when the impulse noise is at what dB - ANS-less than 140 dB(P)
\Single HPDs are to be used when the steady state noise is at what TWA? - ANS-less than
85 dB(A) TWA
\The inner ear hair cells are most vulnerable to damage when the ear is exposed to: -
ANS-excessive noise
\The middle ear is an air-filled space that contains what? - ANS-ossicles or middle ear bones
\To establish calibration baselines what number must be achieved for 500-4000Hz? -
ANS-plus or minus 5
\To establish calibration baselines what number must be achieved for 6000Hz? - ANS-plus
or minus 10
\Unprotected exposure to hazardous noise can cause the following: - ANS-temporary
hearing loss, permanent hearing loss, and/or tinnitus
\What actions should be taken when sudden hearing loss appears on an audiogram? -
ANS-refer immediately as time to treatment is critical; ALWAYS a medical emergency
\What are administrative controls? - ANS-controls that involve changes in worker schedules
or process schedules to reduce noise exposure
\What are auditory effects of noise exposure? - ANS-loss of hearing sensitivity, tinnitus,
missing parts of conversation, slower, inaccurate auditory localization, increased errors or
safety mishaps
\What are diseases related to hearing loss? - ANS-measles, mumps, and meniere's disease
\What are engineering controls? - ANS-controls that reduce the sound at the source or
intercept sound along its path to reduce the noise that reaches the work
\What are non auditory effects of noise exposure? - ANS-high blood pressure, increased
heart rate, increase stress hormone levels, disrupt healthy sleep patterns, possible
reassignment to different MOS, embarrassment frustration or withdrawal
\What are ototoxins? - ANS-toxins that cause hearing loss
