Part 3.1

Question 1

A complaint of speech sounding as if it were listening ‘inside a barrel’ can be corrected by:

a) Lengthening the canal to achieve full boney contact
b) Using smaller diameter tubing
c) Using larger diameter tubing
d) Venting the ear mold for a larger vent
e) a and d

Answer 1

e) a and d

Analyze whether a larger diameter tube will stop high or low frequency, or send them through.

Question 2

A larger earmold bore transmits ______ frequencies more effectively:

a) Lows
b) Highs
c) Medium
d) All
e) no

Answer 2

b) Highs

Larger diameter and the increased number of frequencies won’t be absorbed as easily.

Question 3

A tubing type earmold consisting of the canal portion only is the:

a) Skeleton
b) Half-Shell
c) Shell
d) Canal-Lock
e) Canal

Answer 3

e) Canal

Visualize what the words used to name the types of earmold mean.

Question 4

To vent an earmold for pressure relief purposes only:

a) Provide a large
b) Provide two vents
c) Provide a parallel vent
d) Provide as small a vent as possible
e) A vent will not provide relief

Answer 4

d) Provide as small a vent as possible

It doesn’t take much size to let a little air in or out.

Question 5

The tubing type earmold consisting of a tube into the ear canal and with the tubing held by a retained ring only is:

a) Non-occluding
b) Half-Shell
c) Canal Lock
d) Skeleton
e) Receiver

Answer 5

a) Non-occluding

As little hearing aid as possible so as to not occlude the sound from entering.