NBC-HIS - National Board For Certification In Hearing Instrument Sciences
NBC-HIS - National Board for Certification in Hearing Instrument Sciences
Exam (elaborations)
HIS (Certification In Hearing Instrument Sciences) Exam Questions and 100% CORRECT ANSWERS (GUARANTEED SUCCESS)
6 views 0 purchase
Course
NBC-HIS - National Board for Certification in Hearing Instrument Sciences
Institution
NBC-HIS - National Board For Certification In Hearing Instrument Sciences
HIS (Certification In Hearing Instrument Sciences) Exam Questions and 100% CORRECT ANSWERS (GUARANTEED SUCCESS)
In general, mold modifications are as follows: - ANSWER Venting affects lows, damping the midrange and horn effects boost highs.
Basic verification involves: - ANSWER ch...
HIS (Certification In Hearing
Instrument Sciences) Exam
Questions and 100%
A
CORRECT ANSWERS
VI
(GUARANTEED SUCCESS)
TU
IS
M
In general, mold modifications are as follows: - ANSWER Venting affects lows,
O
damping the midrange and horn effects boost highs.
A
Basic verification involves: - ANSWER checking MCL and UCL in quiet and noise.
Sound field is - ANSWER a controlled environment
N
The configuration and height of the tympanogram can be a factor in deciding the proper
JP
matrix for the fitting of a hearing aid: - ANSWER A high Type A tells us to decrease
the output by 2-3 dB
You cannot use feedback checks when - ANSWER checking the telephone coil
Verification procedures: - ANSWER Check the accuracy of your fitting.
The problems produced by excessive ambient noise are - ANSWER greater for the
lower frequencies than the higher frequencies
,The decibel is - ANSWER a ratio between two intensities
REUR measurement are taken in - ANSWER an open human ear canal
When a hearing aid is dead, you can check the receiver and microphone function by: -
ANSWER turning on the instrument telecoil
The dividing line between the external and middle ear is the - ANSWER tympanic
A
membrane
VI
The cochlea, acting as a frequency analyzer, distributes acoustic stimuli to places along
the basilar membrane according to frequency. This forms the basis of a hypothesis
called the: - ANSWER Place Theory
TU
An organic disorder is when there is damage to: - ANSWER The hearing
mechanism, the neural pathways and the brain.
IS
The speed of sound in air, in feet per second, is : - ANSWER 1100
Properly selected hearing instruments should allow: - ANSWER The patient to wear
an instrument at a comfortable loudness level, improved communication and have
M
better hearing aided.
O
Crystal microphones and receivers: - ANSWER are very fragile
Which of the following is not a coupler used for measuring hearing aid performance? -
A
ANSWER Zwisks Ear Simulator
N
Small diameter tubing of SIA hearing aids has the effect of : - ANSWER reducing
the high frequency gain
JP
The function of a microphone is to : - ANSWER convert acoustic energy into
electrical energy
Vent an earmold : - ANSWER is the most common modification made on an
earmold
When a new hearing instrument has feedback at the patients comfortable level, the
problem is usually: - ANSWER too much wax in the ear canal
, With SIE-S hearing aids: - ANSWER The only signal is from the hearing aid and
phrase effects from a vent are not an issue.
The most comfortable level is: - ANSWER About 45 dB HL or 65 dB SPL for normal
ears
Any complex sound can be broken down into individual frequencies by a technique
known as: - ANSWER Fourier Spectral analysis
A
The adult ear canal: - ANSWER rises upward and forward, then descends to the
VI
drum.
An effective verification is: - ANSWER a measure able improvement in
TU
communication
Which of the following is not included in correct test protocols? - ANSWER plugging
the hearing aid vent to control feedback
IS
Most conducive losses: - ANSWER Are medically correctable, display a breakdown
or obstruction in middle ear and display good discrimination
M
The T position on a hearing aid switch can be used to - ANSWER amplify a
telephone conversation, couple hearing aid into a loop inductor, couple directly into the
O
audio of a radio or tv
The following components can change or modify the frequency response of a hearing
A
instrument: - ANSWER a microphone
N
Afferent fibers: - ANSWER transmit from the cochlea to the brain.
JP
User satisfaction must include: - ANSWER patient preferences
The following measurements use SPL as a reference: - ANSWER Probe
microphones, sound field aided thresholds, and ANSI specifications
Speech discrimination tests: - ANSWER approximate a sample of speech sounds in
an ordinary conversation.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller JPNAOMISTUVIA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.49. You're not tied to anything after your purchase.
