1
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NBC-HIS Questions and Answers (100%
Correct Answers) Already Graded A+
• [ Ans: ] Q: What is the normal range of human hearing in Hz?
What is the normal range of human hearing in Hz? [ Ans: ] 20 Hz
to 20,000 Hz
© 2025 Assignment Expert
What does dB HL stand for? [ Ans: ] Decibels Hearing Level
What is the function of the cochlea? [ Ans: ] To convert sound
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waves into electrical signals sent to the brain
What does air conduction testing evaluate? [ Ans: ] The entire
auditory system, including outer, middle, and inner ear
What does bone conduction testing bypass? [ Ans: ] The outer
and middle ear
What is the purpose of masking in audiology? [ Ans: ] To isolate
the test ear by preventing the non-test ear from participating
What is the minimum interaural attenuation for supra-aural
headphones? [ Ans: ] 40 dB
What does the SRT (Speech Reception Threshold) measure? [
Ans: ] The lowest level at which speech can be understood 50%
of the time
, 2
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What does the word recognition score evaluate? [ Ans: ] The
ability to understand speech at a comfortable loudness level
What is recruitment? [ Ans: ] An abnormal growth in loudness,
often seen in sensorineural hearing loss
What causes conductive hearing loss? [ Ans: ] Blockage or
damage in the outer or middle ear
What causes sensorineural hearing loss? [ Ans: ] Damage to the
© 2025 Assignment Expert
cochlea or auditory nerve
What is mixed hearing loss? [ Ans: ] A combination of
conductive and sensorineural hearing loss
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What are common causes of sensorineural hearing loss? [ Ans: ]
Aging, noise exposure, ototoxic drugs, and genetics
What hearing loss type typically benefits most from hearing aids? [
Ans: ] Sensorineural hearing loss
What audiogram shape is associated with presbycusis? [ Ans: ]
Sloping high-frequency loss
What is the significance of the air-bone gap? [ Ans: ] Indicates
the presence of conductive hearing loss
What type of hearing loss might show normal tympanometry
results? [ Ans: ] Sensorineural hearing loss
What hearing loss is often temporary and caused by fluid or wax?
[ Ans: ] Conductive hearing loss
For Expert help and assignment solutions, +254707240657
NBC-HIS Questions and Answers (100%
Correct Answers) Already Graded A+
• [ Ans: ] Q: What is the normal range of human hearing in Hz?
What is the normal range of human hearing in Hz? [ Ans: ] 20 Hz
to 20,000 Hz
© 2025 Assignment Expert
What does dB HL stand for? [ Ans: ] Decibels Hearing Level
What is the function of the cochlea? [ Ans: ] To convert sound
Guru01 - Stuvia
waves into electrical signals sent to the brain
What does air conduction testing evaluate? [ Ans: ] The entire
auditory system, including outer, middle, and inner ear
What does bone conduction testing bypass? [ Ans: ] The outer
and middle ear
What is the purpose of masking in audiology? [ Ans: ] To isolate
the test ear by preventing the non-test ear from participating
What is the minimum interaural attenuation for supra-aural
headphones? [ Ans: ] 40 dB
What does the SRT (Speech Reception Threshold) measure? [
Ans: ] The lowest level at which speech can be understood 50%
of the time
, 2
For Expert help and assignment solutions, +254707240657
What does the word recognition score evaluate? [ Ans: ] The
ability to understand speech at a comfortable loudness level
What is recruitment? [ Ans: ] An abnormal growth in loudness,
often seen in sensorineural hearing loss
What causes conductive hearing loss? [ Ans: ] Blockage or
damage in the outer or middle ear
What causes sensorineural hearing loss? [ Ans: ] Damage to the
© 2025 Assignment Expert
cochlea or auditory nerve
What is mixed hearing loss? [ Ans: ] A combination of
conductive and sensorineural hearing loss
Guru01 - Stuvia
What are common causes of sensorineural hearing loss? [ Ans: ]
Aging, noise exposure, ototoxic drugs, and genetics
What hearing loss type typically benefits most from hearing aids? [
Ans: ] Sensorineural hearing loss
What audiogram shape is associated with presbycusis? [ Ans: ]
Sloping high-frequency loss
What is the significance of the air-bone gap? [ Ans: ] Indicates
the presence of conductive hearing loss
What type of hearing loss might show normal tympanometry
results? [ Ans: ] Sensorineural hearing loss
What hearing loss is often temporary and caused by fluid or wax?
[ Ans: ] Conductive hearing loss
