Hearing Aid Specialist Exam Questions
Part 4 With Solved Solutions.
Which of the following is not considered to result from the successful use of open canal fittings:
A) Localization
B) High freq assistance because of low freq suppression
C) Pressure relief in the ear canal
D) Tolerance problem relief
E) Some reported improvement in speech discrimination - Answer A) Localization
A vent while providing an escape pathway for amplified sound from the hearing aid can also lead to:
A) Compression
B) Distortion
C) Feedback
D) Low frequency emphasis
E) Increase gain - Answer C) Feedback
All but one of the following are true about venting:
A) increases gain in the high frequencies
B) With vent below 3mm in diameter, some low freq gain can occur
C) Pressure relief occurs with vents as small as .025"
D) May reduce the occlusion effect if large enough
E) It generally provides for extreme low freq suppression - Answer E) It generally provides for extreme
low freq suppression
One of the following does not apply to the CLASSIC CROS
,A) Has microphone on the poor ear side
B) Uses an open earmold
C) Uses the head shadow effect
D) Improves hearing for a unilateral loss
E) Has the amplifier and the receiver on the good ear - Answer C) Uses the head shadow effect
One of the following statements is not true about BiCROS:
A) Off side microphones to overcome head shadow effect
B) Two microphones
C) Two signals to both ears
D) Earmold is generally close type to better ear
E) For some, two sided hearing with one hearing aid - Answer C) Two signals to both ears
Air-Conduction receivers are mostly:
A) Magnetic
B) Ceramic
C) Electret condenser
D) Carbon
E) Crystal - Answer A) Magnetic
In terms of its effect on the frequency response the weakest link in the hearing aid is the:
A) Microphone
B) Receiver
C)Amplifier
D) Power supply
, D) Telephone coil - Answer B) Receiver
A tone control generally acts as a:
A) Low pass filter
B) Output control
C) Volume control
D) High-pass filter
E) Attenuator - Answer D) High-pass filter
The amount in (dB) the amplifier SPL exceeds the microphone SPL is:
A) Acoustic output
B) Saturation
C) Overload
D) Distortion
E) Acoustic gain - Answer E) Acoustic gain
The sum (dB) of input plus gain is:
A) Acoustic output
B) dB gain
C) S/N ratio
D) SSPL/OSPL
E) Distortion - Answer A) Acoustic output
Peak output is:
A) Average SPL of 500, 1000 and 2000 Hz
Part 4 With Solved Solutions.
Which of the following is not considered to result from the successful use of open canal fittings:
A) Localization
B) High freq assistance because of low freq suppression
C) Pressure relief in the ear canal
D) Tolerance problem relief
E) Some reported improvement in speech discrimination - Answer A) Localization
A vent while providing an escape pathway for amplified sound from the hearing aid can also lead to:
A) Compression
B) Distortion
C) Feedback
D) Low frequency emphasis
E) Increase gain - Answer C) Feedback
All but one of the following are true about venting:
A) increases gain in the high frequencies
B) With vent below 3mm in diameter, some low freq gain can occur
C) Pressure relief occurs with vents as small as .025"
D) May reduce the occlusion effect if large enough
E) It generally provides for extreme low freq suppression - Answer E) It generally provides for extreme
low freq suppression
One of the following does not apply to the CLASSIC CROS
,A) Has microphone on the poor ear side
B) Uses an open earmold
C) Uses the head shadow effect
D) Improves hearing for a unilateral loss
E) Has the amplifier and the receiver on the good ear - Answer C) Uses the head shadow effect
One of the following statements is not true about BiCROS:
A) Off side microphones to overcome head shadow effect
B) Two microphones
C) Two signals to both ears
D) Earmold is generally close type to better ear
E) For some, two sided hearing with one hearing aid - Answer C) Two signals to both ears
Air-Conduction receivers are mostly:
A) Magnetic
B) Ceramic
C) Electret condenser
D) Carbon
E) Crystal - Answer A) Magnetic
In terms of its effect on the frequency response the weakest link in the hearing aid is the:
A) Microphone
B) Receiver
C)Amplifier
D) Power supply
, D) Telephone coil - Answer B) Receiver
A tone control generally acts as a:
A) Low pass filter
B) Output control
C) Volume control
D) High-pass filter
E) Attenuator - Answer D) High-pass filter
The amount in (dB) the amplifier SPL exceeds the microphone SPL is:
A) Acoustic output
B) Saturation
C) Overload
D) Distortion
E) Acoustic gain - Answer E) Acoustic gain
The sum (dB) of input plus gain is:
A) Acoustic output
B) dB gain
C) S/N ratio
D) SSPL/OSPL
E) Distortion - Answer A) Acoustic output
Peak output is:
A) Average SPL of 500, 1000 and 2000 Hz
