IHS Exam ACTUAL EXAM TEST QUESTIONS &
ANSWERS (A+ GRADED 100% VERIFIED) 2025
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In general, mold modifications Venting affects lows, damping the midrange and horn effects
are as follows: boost highs.
Basic verification involves: checking MCL and UCL in quiet and noise.
Sound field is a controlled environment
The configuration and height of A high Type A tells us to decrease the output by 2-3 dB
the tympanogram can be a
factor in deciding the proper
matrix for the fitting of a hearing
aid:
You cannot use feedback checking the telephone coil
checks when
Verification procedures: Check the accuracy of your fitting.
The problems produced by greater for the lower frequencies than the higher frequencies
excessive ambient noise are
The decibel is a ratio between two intensities
REUR measurement are taken in an open human ear canal
When a hearing aid is dead, you turning on the instrument telecoil
can check the receiver and
microphone function by:
The dividing line between the tympanic membrane
external and middle ear is the
, The cochlea, acting as a Place Theory
frequency analyzer, distributes
acoustic stimuli to places along
the basilar membrane according
to frequency. This forms the
basis of a hypothesis called the:
An organic disorder is when The hearing mechanism, the neural pathways and the brain.
there is damage to:
The speed of sound in air, in feet 1100
per second, is :
Properly selected hearing The patient to wear an instrument at a comfortable loudness
instruments should allow: level, improved communication and have better hearing aided.
Crystal microphones and are very fragile
receivers:
Which of the following is not a Zwisks Ear Simulator
coupler used for measuring
hearing aid performance?
Small diameter tubing of SIA reducing the high frequency gain
hearing aids has the effect of :
The function of a microphone is convert acoustic energy into electrical energy
to :
Vent an earmold : is the most common modification made on an earmold
When a new hearing instrument too much wax in the ear canal
has feedback at the patients
comfortable level, the problem
is usually:
The only signal is from the hearing aid and phrase effects from a
With SIE-S hearing aids:
vent are not an issue.
The most comfortable level is: About 45 dB HL or 65 dB SPL for normal ears
Any complex sound can be Fourier Spectral analysis
broken down into individual
frequencies by a technique
known as:
The adult ear canal: rises upward and forward, then descends to the drum.
An effective verification is: a measure able improvement in communication
Which of the following is not plugging the hearing aid vent to control feedback
included in correct test
protocols?
Are medically correctable, display a breakdown or obstruction in
Most conducive losses:
middle ear and display good discrimination
The T position on a hearing aid amplify a telephone conversation, couple hearing aid into a loop
switch can be used to inductor, couple directly into the audio of a radio or tv
The following components can a microphone
change or modify the frequency
response of a hearing
instrument:
Afferent fibers: transmit from the cochlea to the brain.