Steam Nozzles and Turbines - Engineering

Q1:

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

A Vb = 0.5 V cos α

B Vb = V cos α

C Vb = 0.5 V2 cos α

D Vb = V2 cos α

ANS:B - Vb = V cos α

Explanation: No answer description is available.