1.

The formula for degree of reaction for hydraulic turbines is __________

A. 1- (V1*V1-V2*V2)/(V1*V1-V2*V2)*(u1*u1-u2*u2)*(Vr2*Vr2-Vr1*Vr1)
B. (V1*V1-V2*V2)/ (V1*V1-V2*V2)*(u1*u1-u2*u2)*(Vr2*Vr2-Vr1*Vr1)
C. 1+ (V1*V1-V2*V2)/ (V1*V1-V2*V2)*(u1*u1-u2*u2)*(Vr2*Vr2-Vr1*Vr1)
D. 1- (V2*V2-V1*V1)/ (V1*V1-V2*V2)*(u1*u1-u2*u2)*(Vr2*Vr2-Vr1*Vr1)
Answer» B. (V1*V1-V2*V2)/ (V1*V1-V2*V2)*(u1*u1-u2*u2)*(Vr2*Vr2-Vr1*Vr1)


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