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Mechanical Vibration mcq. We covered all the Mechanical Vibration mcq in this post for free so that you can practice well for the exam.
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mcq on Mechanical Vibration for Students
Which of the following is not considered a use of Lissajous figures?
a) Comparing frequencies of two systems
b) Determining simple intervals between tuning forks
c) Studying rod vibrations fixed at one end
d) None of the above
Option d – None of the above
A particle undergoes simple harmonic motion along a path 4 cm in length. If its velocity at the midpoint is 12 cm/s, what is the time period?
a) 1.047 sec
b) 0.1047 sec
c) 104.7 sec
d) None of above
Option a – 1.047 sec
A body performs SHM with an amplitude of 1.0 cm and a frequency of 12 Hz. What is its speed when it is 0.5 cm from the mean position?
a) 65.3 cm/s
b) 0.653 cm/s
c) 68.5 cm/s
d) 653 cm/s
Option a – 65.3 cm/s
Two identical wires on a sonometer produce 500 vibrations per second under equal tension. What percentage increase in tension is needed in one wire to create 5 beats per second when both are played together?
a) 4%
b) 2%
c) 5%
d) 3%
Option b – 2%
In the electrical technique for generating Lissajous patterns, which device is used?
a) Cathode ray oscilloscope
b) Blackburn pendulum
c) Vibration microscope
d) None of above
Option a – Cathode ray oscilloscope
What are the different methods used to combine two simple harmonic motions?
a) Optical method
b) Electrical method
c) Blackburn pendulum
d) All of the above
Option d – All of the above
For small oscillations, the potential energy curve of the system has which shape?
a) Circular
b) Parabolic
c) Elliptical
d) Hyperbolic
Option b – Parabolic
An object oscillating with amplitude 5 cm has a time period of 31.4 seconds. What is its maximum velocity?
a) 1.4
b) 2
c) 2.4
d) 1
Option d – 1
At which point is the potential energy of a simple harmonic oscillator at its maximum?
a) At maximum displacement
b) At half the amplitude
c) At equilibrium position
d) None of the above
Option a – At maximum displacement
Which of the following is not a necessary condition for simple harmonic motion?
a) Restoring force
b) Elasticity
c) Inertia
d) Gravity
Option d – Gravity
Lissajous patterns form a figure-eight shape when the ratio of frequencies is
a) 2 : 1
b) 1 : 2
c) 1 : 3
d) 1 : 4
Option b – 1 : 2
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