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Find the coefficient of fluctuation of speed of a flywheel with a maximum speed of 180 rpm and a minimum speed of 160 rpm.

Find the coefficient of fluctuation of speed of a flywheel with a maximum speed of 180 rpm and a minimum speed of 160 rpm. Correct Answer 0.1176

Cs = N1 – N2 / N Where Mean speed, N = N1 + N2 / 2 = 2 (N1 – N2) / N1 + N2 = 2(180 – 160) / 180 + 160 = 0.1176

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