Question 1
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
CORRECT ANSWER
Pure tone audiometers
Only pure tone audiometers have established (ANSI) standards for calibration
Question 2
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
CORRECT ANSWER
Masking noise
distorted tones are an error
switching transients are sounds from turning a stimulus on/off (shouldn't exist)
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,Question 3
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
CORRECT ANSWER
Velocity
Velocity isn't required for sound transmission
It is a characteristic rather of medium, or the particles through which sound are traveling
Question 4
The outer ear is classified as what kind of device?
a. Mechanical
b. Acoustic
c. Hydraulic
d. Biological
CORRECT ANSWER
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
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,Question 5
The middle ear is classified as what kind of device?
a. Acoustic
b. Mechanical
c. Both of these
d. Neither of these
CORRECT ANSWER
Both of these
Tympanic membrane collects acoustic energy; the acoustic energy is transferred into
mechanical energy through the ossicular chain
Question 6
The inner ear is classified as what kind of device?
a. Mechanical
b. Hydraulic
c. Biological
e. All of the above
CORRECT ANSWER
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
Question 7
Without the middle ear, if sound reached the inner ear it would be
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, a. virtually nonexistent
b. so loud it would cause nerve damage
c. distorted in frequency
d. impossible to interpret
CORRECT ANSWER
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
Question 8
Which of the following is most likely to cause conductive hearing loss?
a. presbycusis
b. otitis media
c. noise exposure
d. birth trauma
CORRECT ANSWER
Otitis media
middle ear infection causes swelling and fluid buildup in the middle ear space preventing
sound to reach the inner ear
chronic infections cause cause damage to the ossicular chain as well
Question 9
Which is most likely to cause sensorineural hearing loss?
a. a foreign object
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@THE STUDY VAULT
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
CORRECT ANSWER
Pure tone audiometers
Only pure tone audiometers have established (ANSI) standards for calibration
Question 2
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
CORRECT ANSWER
Masking noise
distorted tones are an error
switching transients are sounds from turning a stimulus on/off (shouldn't exist)
1
@THE STUDY VAULT
,Question 3
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
CORRECT ANSWER
Velocity
Velocity isn't required for sound transmission
It is a characteristic rather of medium, or the particles through which sound are traveling
Question 4
The outer ear is classified as what kind of device?
a. Mechanical
b. Acoustic
c. Hydraulic
d. Biological
CORRECT ANSWER
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
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,Question 5
The middle ear is classified as what kind of device?
a. Acoustic
b. Mechanical
c. Both of these
d. Neither of these
CORRECT ANSWER
Both of these
Tympanic membrane collects acoustic energy; the acoustic energy is transferred into
mechanical energy through the ossicular chain
Question 6
The inner ear is classified as what kind of device?
a. Mechanical
b. Hydraulic
c. Biological
e. All of the above
CORRECT ANSWER
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
Question 7
Without the middle ear, if sound reached the inner ear it would be
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, a. virtually nonexistent
b. so loud it would cause nerve damage
c. distorted in frequency
d. impossible to interpret
CORRECT ANSWER
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
Question 8
Which of the following is most likely to cause conductive hearing loss?
a. presbycusis
b. otitis media
c. noise exposure
d. birth trauma
CORRECT ANSWER
Otitis media
middle ear infection causes swelling and fluid buildup in the middle ear space preventing
sound to reach the inner ear
chronic infections cause cause damage to the ossicular chain as well
Question 9
Which is most likely to cause sensorineural hearing loss?
a. a foreign object
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