Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
Question 1. Which property of sound refers to the number of
compressions and rarefactions per second?
A) Intensity
B) Frequency
C) Wavelength
D) Phase
Answer: B
Explanation: Frequency measures how many sound wave cycles occur
per second, influencing the pitch perceived.
Question 2. In decibel measurement, which of the following best
describes the decibel scale?
A) A linear scale measuring sound intensity
,Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
B) A logarithmic scale representing ratios of sound power or pressure
C) A scale based on pitch perception
D) A scale used solely for measuring loudness of speech
Answer: B
Explanation: The decibel scale is logarithmic, allowing for representation
of the large range of human hearing in manageable units.
Question 3. Sound reflection in an acoustic environment primarily
affects which aspect of sound?
A) Frequency
B) Phase
C) Sound clarity and reverberation
D) Intensity
,Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
Answer: C
Explanation: Reflection causes reverberation, affecting how sound
clarity is perceived within a space.
Question 4. Psychoacoustics studies the relationship between physical
sound properties and which perceptual qualities?
A) Wavelength and intensity
B) Loudness, pitch, and masking
C) Ear anatomy and reflexes
D) Hearing thresholds only
Answer: B
Explanation: Psychoacoustics examines how humans perceive sound
qualities like loudness, pitch, and masking effects.
, Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
Question 5. The pinna's primary role in hearing is to:
A) Amplify sound vibrations before they reach the eardrum
B) Direct sound waves into the ear canal and aid in localization
C) Transmit signals to the auditory nerve
D) Protect the middle ear from infections
Answer: B
Explanation: The pinna helps capture sound and assists in localizing the
direction of sounds.
Question 6. Which ossicle transmits vibration from the tympanic
membrane to the oval window?
A) Malleus
FITTERDISPENSER Exam
Question 1. Which property of sound refers to the number of
compressions and rarefactions per second?
A) Intensity
B) Frequency
C) Wavelength
D) Phase
Answer: B
Explanation: Frequency measures how many sound wave cycles occur
per second, influencing the pitch perceived.
Question 2. In decibel measurement, which of the following best
describes the decibel scale?
A) A linear scale measuring sound intensity
,Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
B) A logarithmic scale representing ratios of sound power or pressure
C) A scale based on pitch perception
D) A scale used solely for measuring loudness of speech
Answer: B
Explanation: The decibel scale is logarithmic, allowing for representation
of the large range of human hearing in manageable units.
Question 3. Sound reflection in an acoustic environment primarily
affects which aspect of sound?
A) Frequency
B) Phase
C) Sound clarity and reverberation
D) Intensity
,Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
Answer: C
Explanation: Reflection causes reverberation, affecting how sound
clarity is perceived within a space.
Question 4. Psychoacoustics studies the relationship between physical
sound properties and which perceptual qualities?
A) Wavelength and intensity
B) Loudness, pitch, and masking
C) Ear anatomy and reflexes
D) Hearing thresholds only
Answer: B
Explanation: Psychoacoustics examines how humans perceive sound
qualities like loudness, pitch, and masking effects.
, Texas (TX) HEARING INSTRUMENT
FITTERDISPENSER Exam
Question 5. The pinna's primary role in hearing is to:
A) Amplify sound vibrations before they reach the eardrum
B) Direct sound waves into the ear canal and aid in localization
C) Transmit signals to the auditory nerve
D) Protect the middle ear from infections
Answer: B
Explanation: The pinna helps capture sound and assists in localizing the
direction of sounds.
Question 6. Which ossicle transmits vibration from the tympanic
membrane to the oval window?
A) Malleus
