In a single stage impulse turbine the blade angles are equal and the nozzle angle is (20^{circ}).

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In a single stage impulse turbine the blade angles are equal and the nozzle angle is \(20^{\circ}\). The velocity coefficient for the blade is 0.83. Find the mzximum blade efficiency possible. If the actual blade efficiency is \(90 \%\) of maximum blade efficiency, find the possible ratio of blade speed to steam speed.

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