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Theory of Machine

Theory of Machine
The purpose of a link is to

Act as a support
Guide other links
Transmit motion
All of these

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Theory of Machine
Which gear train is used for higher velocity ratios in a small space?

Compound gear train
Simple gear train
Epicyclic gear train
Reverted gear train

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Theory of Machine
Critical damping is a function of

Mass and natural frequency
Damping coefficient and natural frequency
Mass and stiffness
Mass and damping coefficient

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Theory of Machine
If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the

0.5
1.5
1
2

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Theory of Machine
The total number of instantaneous centers for a mechanism consisting of n links are

n - 1
n
n/2
n(n - 1)/2

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Theory of Machine
A spring controlled governor is said to be unstable when the controlling force

Increases as the radius of rotation decreases
Increases as the radius of rotation increases
Remains constant for all radii of rotation
Decreases as the radius of rotation increases

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