IHS EXAM (Latest Update) Questions and Verified Answers 100% Correct Grade A+.pdf

IHS EXAM Questions and Verified Answers
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100% Correct | Grade A+ m m m m




1. In general, mold modifications are as follows
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Answer Venting affects lows, damping the midrange and horn effects boost highs.
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2. Basic verification involves
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Answer checking MCL and UCL in quiet and noise.
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3. Sound field ism m




Answer a controlled environment
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4. The configuration and height of the tympanogram can be a factor in decid-
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ing the proper matrix for the fitting of a hearing aid
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Answer A high Type A tells us to decrease the output by 2-3 dB
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5. You cannot use feedback checks when
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Answer checking the telephone coil
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1m/m41

,6. Verification procedures m




Answer Check the accuracy of your fitting.
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7. The problems produced by excessive ambient noise are
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Answer greater for the lower frequencies than the higher frequencies
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8. The decibel is
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Answer a ratio between two intensities
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9. REUR measurement are taken in
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Answer an open human ear canal
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10. When a hearing aid is dead, you can check the receiver and microphone
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function by
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Answer turning on the instrument telecoil
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11. The dividing line between the external and middle ear is the
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Answer tympanic membrane
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12. The cochlea, acting as a frequency analyzer, distributes acoustic stimuli
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to places along the basilar membrane according to frequency. This forms the
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basis of a hypothesis called the
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Answer Place Theory
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13. An organic disorder is when there is damage to
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Answer The hearing mechanism, the neural pathways and the brain.
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2m/m41

,14. The speed of sound in air, in feet per second, is
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Answer 1100 m




15. Properly selected hearing instruments should allow
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Answer The patient to wear an instrument at a comfortable loudness level, improv
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ed communication and have better hearing aided.
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16. Crystal microphones and receivers
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Answer are very fragile
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17. Which of the following is not a coupler used for measuring hearing aid
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performance?
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Answer Zwisks Ear Simulator
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18. Small diameter tubing of SIA hearing aids has the effect of
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Answer reducing the high frequency gain
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19. The function of a microphone is to
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Answer convert acoustic energy into electrical energy
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20. Vent an earmold
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Answer is the most common modification made on an earmold
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21. When a new hearing instrument has feedback at the patients comfortable
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level, the problem is usually
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Answer too much wax in the ear canal
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3m/m41

, 22. With SIE-S hearing aids
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Answer The only signal is from the hearing aid and phrase effects from a vent are
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m not an issue.
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23. The most comfortable level is
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Answer About 45 dB HL or 65 dB SPL for normal ears
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24. Any complex sound can be broken down into individual frequencies by a
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m technique known as m m




Answer Fourier Spectral analysis
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25. The adult ear canal
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Answer rises upward and forward, then descends to the drum.
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26. An effective verification is
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Answer a measure able improvement in communication
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27. Which of the following is not included in correct test protocols?
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Answer plugging the hearing aid vent to control feedback
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28. Most conducive losses m m




Answer Are medically correctable, display a breakdown or obstruction in middle
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ear and display good discrimination
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29. The T position on a hearing aid switch can be used to
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Answer amplify a telephone conversation, couple hearing aid into a loop inductor,
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4m/m41