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THEORY OF MACHINE

Theory of Machine
When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable.

Decreases
Remains constant
None of these
Increases

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Theory of Machine
The working depth of a gear is the radial distance from the

Addendum circle to the clearance circle
Pitch circle to the top of a tooth
Top of a tooth to the bottom of a tooth
Pitch circle to the bottom of a tooth

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Theory of Machine
The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load)

0.6253/ √δS
0.4985/ √δS
0.5615/ √δS
0.571/ √δS

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Theory of Machine
Module of a gear is

2D/T
D/T
T/D
2T/D

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Theory of Machine
The dynamic friction is the friction experienced by a body, when the body

Is at rest
Just begins to slide over the surface of the other body
None of these
Is in motion

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