Hearing Instrument Specialist Exam | Verified Exam Questions and
Answers | Latest Updated Study Material 2026
Question:
Pure tone
Answer:
Single frequency
Question:
Complex tone
Answer:
Multiple frequencies
Question:
Sound
Answer:
Result of motion of a vibrating source
Question:
How does sound travel?
Answer:
On waves that are created by vibrations
Question:
Wave
Answer:
A force or disturbance that travels through a medium such
as liquid, solid, or air, transporting energy from one molecule to the next
Question:
What are sound pressure waves are comprised of?
Answer:
Areas of
compression (greater pressure) and rarefraction (less pressure)
,Question:
Compression
Answer:
Occurs when molecules move closer together
Question:
Rarefraction
Answer:
Occurs when molecules spread apart
Question:
What are sound pressure waves collected by?
Answer:
The outer ear,
channelled to the eardrum which causes it to vibrate with the alternating pressure
Question:
Another word for compression
Answer:
Condensation
Question:
Sine wave
Answer:
Represents pressure as a function of time; 1 cycle per
second or 1 Hertz (Hz)
Question:
Psychoacoustics
Answer:
Perception of sound
Question:
Intensity
, Answer:
Loudness; measured in dB SPL or HL; physical
measurement that expresses signal amplitude
Question:
Frequency
Answer:
Pitch; physical measurement of cycles per second
(Hz)
Question:
Normal human ear responds to what frequency range?
Answer:
20 to
20,000 Hz
Question:
Frequencies that the human ear are most sensitive to?
Answer:
Between
3000 and 4000 Hz
Question:
Audiometer
Answer:
Instrument that measures frequency and intensity
ranges; results displayed on an audiogram
Question:
What is the function of critical bands?
Answer:
Enables the normal ear to
efficiently detect small frequency differences in complex sounds like speech; 1/3 octave wide;
contributes to our ability to hear in background noise
Answers | Latest Updated Study Material 2026
Question:
Pure tone
Answer:
Single frequency
Question:
Complex tone
Answer:
Multiple frequencies
Question:
Sound
Answer:
Result of motion of a vibrating source
Question:
How does sound travel?
Answer:
On waves that are created by vibrations
Question:
Wave
Answer:
A force or disturbance that travels through a medium such
as liquid, solid, or air, transporting energy from one molecule to the next
Question:
What are sound pressure waves are comprised of?
Answer:
Areas of
compression (greater pressure) and rarefraction (less pressure)
,Question:
Compression
Answer:
Occurs when molecules move closer together
Question:
Rarefraction
Answer:
Occurs when molecules spread apart
Question:
What are sound pressure waves collected by?
Answer:
The outer ear,
channelled to the eardrum which causes it to vibrate with the alternating pressure
Question:
Another word for compression
Answer:
Condensation
Question:
Sine wave
Answer:
Represents pressure as a function of time; 1 cycle per
second or 1 Hertz (Hz)
Question:
Psychoacoustics
Answer:
Perception of sound
Question:
Intensity
, Answer:
Loudness; measured in dB SPL or HL; physical
measurement that expresses signal amplitude
Question:
Frequency
Answer:
Pitch; physical measurement of cycles per second
(Hz)
Question:
Normal human ear responds to what frequency range?
Answer:
20 to
20,000 Hz
Question:
Frequencies that the human ear are most sensitive to?
Answer:
Between
3000 and 4000 Hz
Question:
Audiometer
Answer:
Instrument that measures frequency and intensity
ranges; results displayed on an audiogram
Question:
What is the function of critical bands?
Answer:
Enables the normal ear to
efficiently detect small frequency differences in complex sounds like speech; 1/3 octave wide;
contributes to our ability to hear in background noise
