NBC HIS FINAL PAPER 2025/2026 QUESTIONS WITH
SOLUTIONS RATED A+
✔✔What is frequency compression in hearing aids? - ✔✔Shifting high-frequency
sounds into lower-frequency regions
✔✔What does dynamic range refer to? - ✔✔The range between a person's hearing
threshold and discomfort level
✔✔What is a noise reduction algorithm? - ✔✔A digital feature that reduces background
noise
✔✔What is gain adjustment? - ✔✔Modifying the amplification provided at specific
frequencies
✔✔What are compression thresholds? - ✔✔Input levels where compression begins in a
hearing aid
✔✔What does WDRC stand for? - ✔✔Wide Dynamic Range Compression
✔✔What is a peak clipping? - ✔✔A method to limit output by cutting off peaks of loud
sounds
✔✔What are attack and release times in hearing aids? - ✔✔How quickly compression
engages and disengages
✔✔What is a multichannel hearing aid? - ✔✔A device that processes sound in separate
frequency bands
✔✔What is directionality in hearing aids? - ✔✔A feature that emphasizes sounds from
specific directions
✔✔What is the goal of aural rehabilitation? - ✔✔To improve communication abilities in
individuals with hearing loss
✔✔What is the best practice when explaining test results? - ✔✔Use simple language
and visual aids to help patients understand
✔✔Why is patient lifestyle important in hearing aid selection? - ✔✔It affects the choice
of technology and features needed
✔✔What is the first step in counseling a new hearing aid user? - ✔✔Set realistic
expectations and explain the adaptation process
, ✔✔What should you do if a patient is not satisfied with their hearing aids? -
✔✔Reassess their needs, check the fit, and reprogram as needed
✔✔What is auditory training? - ✔✔Exercises to help improve listening and speech
understanding
✔✔How can family members support hearing aid users? - ✔✔By encouraging
consistent use and participating in communication strategies
✔✔What is the trial period for hearing aids? - ✔✔A set time where the patient can
evaluate the device and return it if unsatisfied
✔✔Why is follow-up important after fitting? - ✔✔To ensure satisfaction, make
adjustments, and encourage consistent use
✔✔What is the best way to handle unrealistic expectations? - ✔✔Educate the patient
about hearing aid limitations and benefits
✔✔• - ✔✔Q: What is the normal range of human hearing in Hz?
✔✔A: 20 Hz to 20,000 Hz - ✔✔
✔✔What is the normal range of human hearing in Hz? - ✔✔20 Hz to 20,000 Hz
✔✔What does dB HL stand for? - ✔✔Decibels Hearing Level
✔✔What is the function of the cochlea? - ✔✔To convert sound waves into electrical
signals sent to the brain
✔✔What does air conduction testing evaluate? - ✔✔The entire auditory system,
including outer, middle, and inner ear
✔✔What does bone conduction testing bypass? - ✔✔The outer and middle ear
✔✔What is the purpose of masking in audiology? - ✔✔To isolate the test ear by
preventing the non-test ear from participating
✔✔What is the minimum interaural attenuation for supra-aural headphones? - ✔✔40 dB
✔✔What does the SRT (Speech Reception Threshold) measure? - ✔✔The lowest level
at which speech can be understood 50% of the time
✔✔What does the word recognition score evaluate? - ✔✔The ability to understand
speech at a comfortable loudness level
SOLUTIONS RATED A+
✔✔What is frequency compression in hearing aids? - ✔✔Shifting high-frequency
sounds into lower-frequency regions
✔✔What does dynamic range refer to? - ✔✔The range between a person's hearing
threshold and discomfort level
✔✔What is a noise reduction algorithm? - ✔✔A digital feature that reduces background
noise
✔✔What is gain adjustment? - ✔✔Modifying the amplification provided at specific
frequencies
✔✔What are compression thresholds? - ✔✔Input levels where compression begins in a
hearing aid
✔✔What does WDRC stand for? - ✔✔Wide Dynamic Range Compression
✔✔What is a peak clipping? - ✔✔A method to limit output by cutting off peaks of loud
sounds
✔✔What are attack and release times in hearing aids? - ✔✔How quickly compression
engages and disengages
✔✔What is a multichannel hearing aid? - ✔✔A device that processes sound in separate
frequency bands
✔✔What is directionality in hearing aids? - ✔✔A feature that emphasizes sounds from
specific directions
✔✔What is the goal of aural rehabilitation? - ✔✔To improve communication abilities in
individuals with hearing loss
✔✔What is the best practice when explaining test results? - ✔✔Use simple language
and visual aids to help patients understand
✔✔Why is patient lifestyle important in hearing aid selection? - ✔✔It affects the choice
of technology and features needed
✔✔What is the first step in counseling a new hearing aid user? - ✔✔Set realistic
expectations and explain the adaptation process
, ✔✔What should you do if a patient is not satisfied with their hearing aids? -
✔✔Reassess their needs, check the fit, and reprogram as needed
✔✔What is auditory training? - ✔✔Exercises to help improve listening and speech
understanding
✔✔How can family members support hearing aid users? - ✔✔By encouraging
consistent use and participating in communication strategies
✔✔What is the trial period for hearing aids? - ✔✔A set time where the patient can
evaluate the device and return it if unsatisfied
✔✔Why is follow-up important after fitting? - ✔✔To ensure satisfaction, make
adjustments, and encourage consistent use
✔✔What is the best way to handle unrealistic expectations? - ✔✔Educate the patient
about hearing aid limitations and benefits
✔✔• - ✔✔Q: What is the normal range of human hearing in Hz?
✔✔A: 20 Hz to 20,000 Hz - ✔✔
✔✔What is the normal range of human hearing in Hz? - ✔✔20 Hz to 20,000 Hz
✔✔What does dB HL stand for? - ✔✔Decibels Hearing Level
✔✔What is the function of the cochlea? - ✔✔To convert sound waves into electrical
signals sent to the brain
✔✔What does air conduction testing evaluate? - ✔✔The entire auditory system,
including outer, middle, and inner ear
✔✔What does bone conduction testing bypass? - ✔✔The outer and middle ear
✔✔What is the purpose of masking in audiology? - ✔✔To isolate the test ear by
preventing the non-test ear from participating
✔✔What is the minimum interaural attenuation for supra-aural headphones? - ✔✔40 dB
✔✔What does the SRT (Speech Reception Threshold) measure? - ✔✔The lowest level
at which speech can be understood 50% of the time
✔✔What does the word recognition score evaluate? - ✔✔The ability to understand
speech at a comfortable loudness level
