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Theory of Machine

Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
EC S/2
2ECS
2E²CS

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Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Same as the first one
One and a half times the first one
Four times the first one
One fourth of the first one

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Theory of Machine
The frictional torque transmitted in a flat pivot bearing, considering uniform wear, is (where μ = Coefficient of friction, W = Load over the bearing, and R = Radius of bearing surface)

(1/2) μ W R
μ W R
(3/4) μ W R
(2/3) μ W R

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Theory of Machine
The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by (where R = Radius of flank, r₁ = Minimum radius of the cam, and θ = Angle turned through by the cam)

(R - r₁) (1 - sinθ)
R (1 - cosθ)
R (1 - sinθ)
(R - r₁) (1 - cosθ)

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Theory of Machine
The secondary unbalanced force is __________ the primary unbalanced force.

n times
Two-third
One-half
1/n times

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Theory of Machine
A circle passing through the pitch point with its center at the center of cam axis is known as

Pitch circle
Prime circle
Outer circle
Base circle

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