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

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Theory of Machine
When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

Average tension of the tight side and slack side of the belt
Sum of the tensions on the tight side and slack side of the belt
Tension in the tight side of the belt
Tension in the slack side of the belt

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Theory of Machine
The maximum fluctuation of energy is the

Sum of the maximum and minimum energies
Difference between the maximum and minimum energies
Ratio of the mean resisting torque to the work-done per cycle
Variations of energy above and below the mean resisting torque line

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