Page | 1
COSTCO ILE 3 STUDY GUIDE EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
, Page | 2
1. What frequencies change results when tubing is flared out?
A. Increases 1000- 3000Hz
B. Increases 2000-5000Hz
C. Decrease 2000-5000Hz
D. Decreases 1000-3000Hz - correct answer - b
2. A patient has a moderate to severe SNHL. He has been
wearing ITC instruments for 2 weeks. He comes to his
providers office and reports his head feels plugged up. What
should be done first to assess the issue?
A. Decrease the low frequencies
B. Council that he is still not used to hearing his own voice as
it takes 3 weeks for the brain to adapt
C. Increase the high Frequencies
D. Determine if the ITC is causing occlusion - correct answer -
d
3. What is the best way to determine if a hearing aid is working
appropriately?
A. Visual inspection
B. Listening check
, Page | 3
C. Program to first fit
D. Test box measures - correct answer - d
4. For which of the following causes of feedback would the
hearing aid need to be sent in for repair?
A. Microphone is clogged
B. External
C. Earhook is split
D. Internal - correct answer - d
5. The 2003 ANSI standard requires that a frequency response
curve be run at what level for all hearing aids?
A. 50 db HL
B. 60 db HL
C. 60 db SPL
D. 50db SPL - correct answer - c
6. Which test Box measure evaluates the distortion of a hearing
aid?
A. STS
COSTCO ILE 3 STUDY GUIDE EXAM 2025|
BRAND NEW ACTUAL EXAM WITH 100%
VERIFIED QUESTIONS AND CORRECT
SOLUTIONS| GUARANTEED VALUE PACK| ACE
YOUR GRADES.
, Page | 2
1. What frequencies change results when tubing is flared out?
A. Increases 1000- 3000Hz
B. Increases 2000-5000Hz
C. Decrease 2000-5000Hz
D. Decreases 1000-3000Hz - correct answer - b
2. A patient has a moderate to severe SNHL. He has been
wearing ITC instruments for 2 weeks. He comes to his
providers office and reports his head feels plugged up. What
should be done first to assess the issue?
A. Decrease the low frequencies
B. Council that he is still not used to hearing his own voice as
it takes 3 weeks for the brain to adapt
C. Increase the high Frequencies
D. Determine if the ITC is causing occlusion - correct answer -
d
3. What is the best way to determine if a hearing aid is working
appropriately?
A. Visual inspection
B. Listening check
, Page | 3
C. Program to first fit
D. Test box measures - correct answer - d
4. For which of the following causes of feedback would the
hearing aid need to be sent in for repair?
A. Microphone is clogged
B. External
C. Earhook is split
D. Internal - correct answer - d
5. The 2003 ANSI standard requires that a frequency response
curve be run at what level for all hearing aids?
A. 50 db HL
B. 60 db HL
C. 60 db SPL
D. 50db SPL - correct answer - c
6. Which test Box measure evaluates the distortion of a hearing
aid?
A. STS
