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Theory of Machine

Theory of Machine
If two moving elements have surface contact in motion, such pair is known as

Sliding pair
Rolling pair
Surface pair
Higher pair

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Theory of Machine
The motion between a pair which takes place in ____ is known as incompletely constrained motion.

Two directions only
One direction only
More than one direction
None of the listed here

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Theory of Machine
The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

Vertically and parallel
Horizontally and perpendicular
Horizontally and parallel
Vertically and perpendicular

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Theory of Machine
In steady state forced vibrations, the amplitude of vibrations at resonance is __________ damping coefficient.

Equal to
Directly proportional to
Independent of
Inversely proportional to

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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

2
1.5
1
0.5

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

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

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