Lesson 18

Question 1

Functional gain testing with CIC instruments is

Answer 1

simple for the patient to understand with less test-retest variability than conventional sound field testing

Question 2

With real ear measurement testing, which of the following is true

Answer 2

the probe should be within 5 mm of the eardrum in order to avoid standing waves

Question 3

The deeper microphone placement offers what advantage

Answer 3

natural high frequency emphasis between 2700 and 4000 Hz

Question 4

The deeper receiver placement offers what advantage

Answer 4

increased headroom with undistorted output

Question 5

The Occlusion Effect is due to

Answer 5

increase in bone-conduction sound for frequencies below 2000 Hz

Question 6

When the wind is coming from directly ahead, wind noise is reduced in CIC’s by the following amount

Answer 6

23 dB

Question 7

CICs offer a reduction in feedback for ALL but the following reasons

Answer 7

increased headroom with undistorted output

Question 8

All but one of the following are considered possible disadvantages of CIC fittings

Answer 8

introduction of programmable CICs

Question 9

Earmold impressions for CICs should

Answer 9

extend at least 2 mm beyond the second bend using medium viscosity, silicon material

Question 10

With CIC fittings, which of the following frequency modifications should be made

Answer 10

less high frequency amplification should be provided due to the deeper microphone placement