Audiology Praxis Study Guide
Questions and Correct Answers
For which of the following instruments do national standards or uniform
performance standards for calibration exist?
a. Pure tone audiometers
b. OAEs
c. ABR
d. all have calibration standards
Pure tone audiometers
Only pure tone audiometers have established (ANSI) standards for calibration
Which is most likely to be introduced deliberately by an examiner during an
audiometric exam?
a. distorted tone
b. switching transients
c. masking noise
d. none of the above
Masking noise
,distorted tones are an error
switching transients are sounds from turning a stimulus on/off (shouldn't exist)
Sound requires a hearing mechanism to receive it. The other three necessary
components include the following except:
a. vibration
b. medium
c. force
d. velocity
Velocity
Velocity isn't required for sound transmission
It is a characteristic rather of medium, or the particles through which sound are
traveling
The outer ear is classified as what kind of device?
a. Mechanical
b. Acoustic
c. Hydraulic
d. Biological
Acoustic
The outer ear collects and funnels acoustic energy
It doesn't perform mechanical movement
,It doesn't contain fluid like the inner ear
It doesn't analyze sound energy and transmit it as an electrical impulse
The middle ear is classified as what kind of device?
a. Acoustic
b. Mechanical
c. Both of these
d. Neither of these
Both of these
Tympanic membrane collects acoustic energy; the acoustic energy is transferred
into mechanical energy through the ossicular chain
The inner ear is classified as what kind of device?
a. Mechanical
b. Hydraulic
c. Biological
e. All of the above
All of the above
The hair cells mechanically transmit energy
The endolymph (fluid) moves from incoming sound causing the movement of the
hair cells
, It analyzes sound based on frequency and intensity and transmits that sound to
the brain
Without the middle ear, if sound reached the inner ear it would be
a. virtually nonexistent
b. so loud it would cause nerve damage
c. distorted in frequency
d. impossible to interpret
Virtually nonexistent
without the middle ear approx. 99.9% of sound would be reflected back to the
atmosphere because the impedance of the inner ear is so much greater than that
of the atmosphere
The middle ear amplifies sound by approximately 17 times
Which of the following is most likely to cause conductive hearing loss?
a. presbycusis
b. otitis media
c. noise exposure
d. birth trauma
Otitis media
middle ear infection causes swelling and fluid buildup in the middle ear space
preventing sound to reach the inner ear
Questions and Correct Answers
For which of the following instruments do national standards or uniform
performance standards for calibration exist?
a. Pure tone audiometers
b. OAEs
c. ABR
d. all have calibration standards
Pure tone audiometers
Only pure tone audiometers have established (ANSI) standards for calibration
Which is most likely to be introduced deliberately by an examiner during an
audiometric exam?
a. distorted tone
b. switching transients
c. masking noise
d. none of the above
Masking noise
,distorted tones are an error
switching transients are sounds from turning a stimulus on/off (shouldn't exist)
Sound requires a hearing mechanism to receive it. The other three necessary
components include the following except:
a. vibration
b. medium
c. force
d. velocity
Velocity
Velocity isn't required for sound transmission
It is a characteristic rather of medium, or the particles through which sound are
traveling
The outer ear is classified as what kind of device?
a. Mechanical
b. Acoustic
c. Hydraulic
d. Biological
Acoustic
The outer ear collects and funnels acoustic energy
It doesn't perform mechanical movement
,It doesn't contain fluid like the inner ear
It doesn't analyze sound energy and transmit it as an electrical impulse
The middle ear is classified as what kind of device?
a. Acoustic
b. Mechanical
c. Both of these
d. Neither of these
Both of these
Tympanic membrane collects acoustic energy; the acoustic energy is transferred
into mechanical energy through the ossicular chain
The inner ear is classified as what kind of device?
a. Mechanical
b. Hydraulic
c. Biological
e. All of the above
All of the above
The hair cells mechanically transmit energy
The endolymph (fluid) moves from incoming sound causing the movement of the
hair cells
, It analyzes sound based on frequency and intensity and transmits that sound to
the brain
Without the middle ear, if sound reached the inner ear it would be
a. virtually nonexistent
b. so loud it would cause nerve damage
c. distorted in frequency
d. impossible to interpret
Virtually nonexistent
without the middle ear approx. 99.9% of sound would be reflected back to the
atmosphere because the impedance of the inner ear is so much greater than that
of the atmosphere
The middle ear amplifies sound by approximately 17 times
Which of the following is most likely to cause conductive hearing loss?
a. presbycusis
b. otitis media
c. noise exposure
d. birth trauma
Otitis media
middle ear infection causes swelling and fluid buildup in the middle ear space
preventing sound to reach the inner ear
