Human Ear Quiz | Human Ear Multiple Choice Questions and Answers

Questions
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

Answer: 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

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

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?
A 6
B 3
C 4
D 5

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