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Q. |
In the velocity diagrams for Francis turbine, which of the following velocity directions is along the blade curvature? |
A. | vr1 |
B. | vw1 |
C. | v1 |
D. | u1 |
Answer» A. vr1 | |
Explanation: vr1 is the relative velocity of the water flow as seen from the blade. thus, relative velocity is along the direction of the curvature of the blade. |
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