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Theory of Machine

Theory of Machine
The example of higher pair is

Gears, cams
Belt, rope and chain drives
All of these
Ball and roller bearings

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Theory of Machine
The balancing weights are introduced in planes parallel to the plane of rotation of the disturbing mass. To obtain complete dynamic balance, the minimum number of balancing weights to be introduced in different planes is

1
3
2
4

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Theory of Machine
The frequency of oscillation of a torsional pendulum is

r/2πk. √(l/g)
2πr/k. √(g/l)
2πk/r. √(g/l)
r/2πk. √(g/l)

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Theory of Machine
A spring controlled governor is found unstable. It can be made stable by

Increasing the spring stiffness
Decreasing the ball mass
Decreasing the spring stiffness
Increasing the ball mass

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Theory of Machine
Cylindrical cams can be classified as

Reciprocating
None of these
Circular
Tangent

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Theory of Machine
When the body is suspended at the point of suspension, its periodic time and frequency will be ________ as compared to the body suspended at the point of percussion.

None of these
Four times
Two times
Same

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