Part 2.4 Flashcards
a spondee is a two syllable word with
a) equal stress on both syllables
b) more stress on the first syllable
c) more stress on the last syllable
d) none of the above
a) equal stress on both syllables
The electronic resistance of a wire is inversely proportional to its length
True
False
False
If this was true different lengths of wires would effect the output of our stereos.
Why can body aids provide more amplification than behind the ear aids?
a) battery is larger
b) can use tubes instead of transistors
c) microphone is larger
d) it’s located at the chest so loud sounds won’t hurt the ear
e) microphone is more distant from the receiver
e) microphone is more distant from the receiver
Where are the low frequencies analyzed in the cochlea?
a) apex
b) near the middle
c) near the oval window
d) base
e) all of the above
a) apex
Low frequencies have less waves, less chance of being picked up until they are deep in the cone.
What is true of the external auditory canal?
a) the outer ⅔ is skin over bone
b) the inner ⅓ is skin over cartilage
c) it is usually straight
d) it has hair cells
e) none of the above
d) it has hair cells
Straight memorization. The data concerning measurements is interesting, however, and you should consider the ear from this viewpoint.
Which of the following is part of the helix?
a) scaphoid fossa
b) scala vestibuli
c) intertragial notch
d) a, b, and c
e) a and c only
e) a and c only
Scala Vestibule is in inner ear. Knowing the Latin terms will help you.
Any disarticulation between the incus and the stapes will cause
a) a malfunction of the semicircular canals which in turn cause a feeling of dizziness
b) a decrease in the passage of high frequency sounds
c) a decrease in the passage of both high frequency and low frequency sounds
d) a decrease in the passage of low frequency sounds
c) a decrease in the passage of both high frequency and low frequency sounds
Visualize what is being stated here. See the problem in your mind, and the answer will be easy.
Sound waves travel in expanding circles on the surface
a) True
b) False
b) False
No, they go down and up as well. They travel out in every direction.
The transistor is a solid state device which acts like a variable resistor and is controlled by the input current
True
False
False
Input current doesn’t control anything, it is controlled once it is in the transistor
A descending test technique is commonly used in hearing instrument testing because
a) it is the easiest to explain to the client
b) it is the easiest for the client to hear
c) it can prevent hearing fatigue
d) all of the above
b) it is the easiest for the client to hear
Common sense, this aligns with the purpose of the test.
In bone conduction, which parts of the ear are involved?
a) the external and middle ear only
b) the external and inner ear only
c) the middle and inner ear only
d) the exterior, middle and inner ear
e) the inner ear only
e) the inner ear only
The volume of gain control of a hearing aid regulates the amount of the input
True
False
True
True. Make sure you understand the difference between gain and MPO.
The tympanic cavity
a) is normally a fluid filled cavity
b) contains three tiny bones called the Malleus, Hammer, and Stapes
c) contains two muscles: the stapedius and the tympanic tensoid muscles
d) b and c only
e) a and c only
c) contains two muscles: the stapedius and the tympanic tensoid muscles
The decibel is a ratio between two intensities
True
False
True
In bone conduction testing the vibrator should be
a) placed so that it contacts the pinna as well as the mastoid
b) held in place by the person being tested
c) held in place by a headband that exerts exactly one pound of pressure
d) placed at the most sensitive position in the mastoid area
d) placed at the most sensitive position in the mastoid area
