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Theory of Machine

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

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

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Theory of Machine
For a kinematic chain to be considered as mechanism

One link should be fixed
Two links should be fixed
None of the links should be fixed
There is no such criterion

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Theory of Machine
The critical speed of a shaft in revolution per second is __________ as that of natural frequency of transverse vibration.

None of these
Different
Unpredictable
Same

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Theory of Machine
The pair is known as a higher pair, when the relative motion between the elements of a pair is

Turning only
Rolling only
Sliding only
Partly turning and partly sliding

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Theory of Machine
The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m).(dx/dt) + (s/m).x = 0, if the roots of the equation are __________ then the system will be under damped.

Complex conjugate
Real
Equal
None of these

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Theory of Machine
The amplitude of vibration is always __________ the radius of the circle.

Less than
Greater than
None of these
Equal to

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