Mechanical Engineering Mcqs

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=V0B

(B)  Vt>V0

(C)  U,<V0

(D)  V,= U0

(E)  Vri=Vm

Submitted By :Ali Uppal

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