The efficiency of reaction turbine is maximum when (where ≈í¬± = – McqOptions

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1.	The efficiency of reaction turbine is maximum when (where ≈í¬± = Angle made by the absolute velocity ‚Äö√Ñ√≤V‚Äö√Ñ√¥ at inlet)?
A.	Vb = 0.5 V cos≈í¬±
B.	Vb = V cos ≈í¬±
C.	Vb = 0.5 V¬¨‚â§ cos≈í¬±
D.	Vb = V¬¨‚â§ cos ≈í¬±
Answer» C. Vb = 0.5 V¬¨‚â§ cos≈í¬±

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