Theory of Machine
A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by

W CE / 2CS
2 W CE / CS
W CE / CS
W CS / 2CE

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Theory of Machine
The maximum fluctuation of speed is the

Difference of the maximum and minimum speeds
Difference of minimum fluctuation of speed and the mean speed
Variations of speed above and below the mean resisting torque line
Sum of maximum and minimum speeds

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Theory of Machine
Which of the following statement is correct for involute gears?

The pressure angle is constant throughout the teeth engagement.
A convex flank is always in contact with concave flank.
The interference is inherently absent.
The variation in centre distance of shafts increases radial force.

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