SSC JE Mechanical Engineering 2018 Set 3 Paper

Question : 105 of 200

Marks: +1, -0

Which term defines the fluctuation of speed of a flywheel in terms of angular speeds?

Solution:

Fluctuation of speed =

{ω_1-ω_2}/ω_\avg={\Range \of \speed}/{\Average \speed}

={2(ω_1-ω_2)}/{ω_1+ω_2}

∵ω_\avg={ω_1+ω_2}/2

{2(N_1-N_2)}/{N_1+N_2}

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