If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity

A Vi = Vo
B Vt > Vo
C U
D V = Uo

Correct Answer: Vi = Vo

If V, U and Vr represent the absolute velocity of fluid, velocity of blade, and relative velocity of fluid, and suffix ‘I’ and ‘o’ stand for entry and exit conditions, then in a rotary machine whose degree of reaction is unity Vi = Vo
Bissoy MCQ
#Mechanical Engineering #Compressors #Gas Turbines And Jet Engines

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