Q488
The efficiency of an impulse turbine is maximum when (where Vb = Blade speed, V = Absolute velocity of steam entering the blade and α = Nozzle angle)
A.
Vb = 0.5 V cosα
AnswerB.
Vb = V cosα
C.
Vb = 0.5 V2cosα
D.
Vb = V2cosα
Answer: Option A
Solution
Answer: Option A
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