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Hearing Mechanism MCQ Questions & Answers

Hearing Mechanism MCQs : This section focuses on the "Hearing Mechanism". These Multiple Choice Questions (MCQs) should be practiced to improve the Hearing Mechanism skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

__________ is specialized equipment, which is used for the identification of hearing the loss in individuals.

A. gaugemeter
B. tachometer
C. manometer
D. audiometer

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Question 2

Air conduction, by definition, is the transmission of sound through the external and middle ear to the internal ear.

A. True
B. False

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Question 3

Decibel expresses the logarithm of the ratio between two sound _________

A. intensities
B. powers
C. pressures
D. intensities, powers and pressures

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Question 4

If I1 and I2 are two intensities in watts per square centimetre, then the number of decibels with which they are related can be expressed as _________

A. N = 10 log I1/I2
B. N = 10 log I2/I1
C. N = -10 log I1/I2
D. N = log I1/I2

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Question 5

Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.

A. malleus
B. stapes
C. incus
D. hammer

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Question 6

Sound intensity is proportional to the _________ of sound pressure.

A. cube
B. square
C. inverse square
D. inverse square root

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Question 7

Speech audiometers are normally used to determine ______________

A. speech reception thresholds for diagnostic purposes
B. air-conduction and bone-conduction thresholds of hearing
C. bone-conduction thresholds of hearing
D. air-conduction thresholds of hearing

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Question 8

The hearing threshold is an invariable fixed intensity above which sound is always heard and below which sound is never heard.

A. True
B. False

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Question 9

The human ear responses to vibrations ranging from ___________

A. 20KHz – 20MHz
B. 2KHz – 20MHz
C. 20Hz – 20KHz
D. 2Hz – 2KHz

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Question 10

The major function of the middle ear is ____________

A. to transfer movements of the air in the outer ear to the cochlea
B. to transfer movements of the air in the outer ear to the auditory nerves
C. to transfer movements of the air in the outer ear to the tympanic membrane
D. to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear

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Question 11

The middle ear is exposed to atmospheric pressure only through the _______

A. eustachian tube
B. tympanic membrane
C. pinna
D. auditory nerve

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Question 12

The tympanic membrane separates the ear canal from the _____________

A. upper ear cavity
B. lower ear cavity
C. middle ear cavity
D. inner ear cavity

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Question 13

Unit of sound intensity ________

A. joules per sq. cm
B. watt per sq. cm
C. joules per cm
D. watt per cm

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Question 14

What is the unit of dB?

A. watts per sq cm
B. dyne per sq cm
C. unit less
D. watts per cm

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Question 15

Which threshold of hearing is measured by a pure-tone audiometer?

A. air-conduction thresholds of hearing
B. bone-conduction thresholds of hearing
C. speech reception thresholds for diagnostic purposes
D. air-conduction and bone-conduction thresholds of hearing

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Question 16

The human ear responses to vibrations ranging from ___________

A. 20KHz – 20MHz
B. 2KHz – 20MHz
C. 20Hz – 20KHz
D. 2Hz – 2KHz

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