Question: In a single stage impulse turbine, nozzle angle is (20^{circ}) and blade angles are equal. The velocity coefficient for blades is 0.85 . calculate the

In a single stage impulse turbine, nozzle angle is $20^{\circ}$ and blade angles are equal. The velocity coefficient for blades is 0.85 . calculate the maximum blade efficiency possible. If the actual blade efficiency is $92 \%$ of the maximum blade efficiency, find the possible ratio of blade speed to steam speed.

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