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A centrifugal pump is required to lift 9100 lit/s of water against a head of 6 m while running at 500 r.p.m. The velocity of flow through the wheel is 2 m/s and the manometric efficiency is 60%. The angle of vane tip with the direction of motion is 150°. Work out the following:

(i)   Sketch an impeller of centrifugal pump and draw the velocity triangle.

(ii)  The diameter of impeller

(iii) The width of impeller

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