What effect does a 10 dB SPL increase in intensity have on the sensation of loudness over the most of the audible range increases by double
How does Boyle's law apply to hearing aid fittings? fitting depth affects the sound pressure level at the eardrum
A HA Specialist is presenting a tone to a P...
IHS Chapter 4 Test Questions and
Correct Answers
What effect does a 10 dB SPL increase in intensity have on the sensation of loudness
over the most of the audible range ✅increases by double
How does Boyle's law apply to hearing aid fittings? ✅fitting depth affects the sound
pressure level at the eardrum
A HA Specialist is presenting a tone to a PT. They want to be sure that the PT hears the
tone, so they present it at a level that is 20dB above the PT's threshold at 1000 HZ,
which is 30dB HL. How should the HA Specialist notate this presentation level? ✅20
dB SL
Which frequency of pure tone will be perceived as the loudest when presented at 60dB
SPL? ✅1000 Hz
A PT comes in for Hearing Test. They indicate they have a lot of trouble distinguishing
between speech sounds like "ith" and "if" as well as hearing background noise.
Which factor may be causing this PT's challenges? ✅widening critical bands
PT is in office for a 6month F\U appt. They state they are generally very happy with
HA's, but they are having trouble in conference area at work as it is in a large room with
hard surfaces.
What acoustic principle can be applied to decrease PT's difficulty? ✅absorption
when Two 40 dB SPL sounds are combined what is the resulting dB SPL? ✅46 dB
SPL
Intensity and frequency are the perpetual matches for which of the following
✅loudness and pitch
what is the dividing line between low and high frequencies ✅1000 Hz
HA Specialist strikes a tuning fork, which begins to vibrate and emit a sound. How do
the sound waves created by the fork affect the air through which they travel ✅the
waves move the air molecules through compression and rarefaction
What is the range of human hearing in dynes\cm2 and decibels? ✅0.0002 to 1000; 0
to 140
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 twishfrancis. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
