1 UPDATED ACTUAL Questions and
CORRECT Answers
A properly fitted ear mold should:
A) Hold the receiver in place
B) Seal the ear canal in some cases
C) Direct amplified sound towards the Tympanic Membrane
D) Be cosmetically appealing
E) All of the above - CORRECT ANSWER- E) All of the above
The transistor depends upon the flow of electrons through:
A)A gas
B) A semi-conductor
C)A solid
D) a and c
E) b and c - CORRECT ANSWER- E) b and c
Which of the following pairs correctly compares transistors to vacuum tubes:
A) Emitter/Grid
B) Collector/Cathode
C) Base/Anode
D) Semi-conductor/filament
E) Current Amplifier/Voltage Amplifier - CORRECT ANSWER- D) Semi-
conductor/filament
,One of the following statements about volume controls is not accurate:
A) Allows user to select a comfortable listening level
B) Are mostly of the carbon type
C) Has consistent taper from aid to aid
D) Has a range of between 30 - 40 dB in an aid
E) Is sometimes a screw set control - CORRECT ANSWER- B) Are mostly of the carbon
type
Which of the following battery cells is used most frequently today:
A) Mercury
B) Silver oxide
C) Nicade
D) Zinc oxide
E) Zinc air - CORRECT ANSWER- E) Zinc air
The sound applied to the microphone is referred to as:
A) Output
B) MPO
C) Input
D) Saturation
E) Gain - CORRECT ANSWER- C) Input
The failure for a system to reproduce a wave form exactly is:
A) Frequency response
, B) Distortion
C) Compression
D) Rarefaction
E) Saturation - CORRECT ANSWER- B) Distortion
The latest performance standards for hearing aids to which they are manufactured is:
A) ANSI 1987
B) HAIC 1999
C) ANSI 1984
D) ANSI 1996
E) ISO 1995 - CORRECT ANSWER- D) ANSI 1996
If a hearing aid has a gain of 40 dB and the input is 65 dB, the output will be:
A) 100 dB
B) 130 dB
C) 15 dB
D) 125 dB
E) 105 dB - CORRECT ANSWER- E) 105 dB
If the maximum output of an aid is at 1000 Hz and is 130 dB, with a gain of 50 dB what was the
input?
A) 60 dB
B) 50 dB
C) 70 dB
D) 90 dB