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Edited: Jul 12, 2023

Optimum Blade Velocity of Impulse Turbine - GATE '98 ME

If Vn and α are the nozzle exit velocity and nozzle angle in an impulse turbine, the optimum blade velocity is given by,

A. Vn cos2α

B. Vn sin 2α

C. (Vn cosα)/ 2

D. (Vn^2)/2

Ans: The correct option is D.

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