The efficiency of reaction turbine is maximum when (where `alpha` = Angle made by the absolute velocity ( V ) at inlet) Options: A . &nbspVb = 0.5 V cos`alpha` B . &nbspVb = V cos `alpha` C . &nbspVb = 0.5 V2 cos `alpha` D . &nbspVb = V2 cos`alpha`

The

Question

The efficiency of reaction turbine is maximum when (where `alpha` = Angle made by the absolute velocity (V) at inlet)

Options:

A . Vb = 0.5 V cos`alpha`

B . Vb = V cos `alpha`

C . Vb = 0.5 V2 cos `alpha`

D . Vb = V2 cos`alpha`

Answer: Option B

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