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Free download in PDF Human Ear Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
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
Answer: speech reception thresholds for diagnostic purposes
(2)
Which threshold of hearing is measured by a pure-tone audiometer?
[A]
air-conduction and bone-conduction thresholds of hearing
[B]
speech reception thresholds for diagnostic purposes
[C]
bone-conduction thresholds of hearing
[D]
air-conduction thresholds of hearing
Answer: air-conduction and bone-conduction thresholds of hearing
(3)
__________ is specialized equipment, which is used for the identification of hearing the loss in individuals.
[A]
audiometer
[B]
manometer
[C]
tachometer
[D]
gaugemeter
(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 = log I1/I2
[C]
N = 10 log I2/I1
[D]
N = -10 log I1/I2
(5)
What is the unit of dB?
[A]
unit less
[B]
watts per cm
[C]
dyne per sq cm
[D]
watts per sq cm
(6)
Decibel expresses the logarithm of the ratio between two sound _________
[A]
intensities, powers and pressures
[B]
pressures
[C]
powers
[D]
intensities
Answer: intensities, powers and pressures
(7)
Sound intensity is proportional to the _________ of sound pressure.
[A]
square
[B]
inverse square root
[C]
inverse square
[D]
cube
(8)
Unit of sound intensity ________
[A]
watt per sq. cm
[B]
joules per sq. cm
[C]
joules per cm
[D]
watt per cm
(9)
Name the bone that rests upon the lower end of the cochlea and passes the vibrations directly into the fluid within.
[A]
stapes
[B]
hammer
[C]
malleus
[D]
incus
(10)
The human ear responses to vibrations ranging from ___________
[A]
2Hz – 2KHz
[B]
20Hz – 20KHz
[C]
2KHz – 20MHz
[D]
20KHz – 20MHz
(11)
The major function of the middle ear is ____________
[A]
to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear
[B]
to transfer movements of the air in the outer ear to the tympanic membrane
[C]
to transfer movements of the air in the outer ear to the auditory nerves
[D]
to transfer movements of the air in the outer ear to the cochlea
Answer: to transfer movements of the air in the outer ear to the fluid-filled chambers of the inner ear
(12)
The middle ear is exposed to atmospheric pressure only through the _______
[A]
eustachian tube
[B]
tympanic membrane
[C]
pinna
[D]
auditory nerve
(13)
The tympanic membrane separates the ear canal from the _____________
[A]
middle ear cavity
[B]
inner ear cavity
[C]
lower ear cavity
[D]
upper ear cavity
Answer: middle ear cavity
(14)
Cochlea is present in the
[A]
Incus
[B]
Semicircular canals
[C]
Inner ear
[D]
Malleus
(15)
Auditory nerve communicates information from ears to
[A]
Brain
[B]
Incus
[C]
Malleus
[D]
Stapes
(16)
Semicircular canals are filled with
[A]
Bile
[B]
Endolymph
[C]
Perilymph
[D]
Mucous
(17)
How many semicircular canals are present in the Inner ear?
(18)
We can hear sounds in frequeney range of
[A]
16 to 40,000
[B]
50 to 60,000
[C]
30 to 50.000
[D]
40 to 50,000
(19)
Some sounds can enter the inner ear through the bones of the skull. This is called
[A]
Bony conduction
[B]
Malleus
[C]
Bony reception
[D]
Bony Adoption
(20)
Hair like cilium projects from each receptor cells of Basilar membrane into endolymph of the
[A]
Vitreous Chamber
[B]
upper chamber
[C]
Aqueous Chamber
[D]
Lower Chamber
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