[Solved] Which of the following statements is correct with reference to an impeller with backward curved vanes?

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Q.	Which of the following statements is correct with reference to an impeller with backward curved vanes?
A.	It has a falling head - discharge characteristic.
B.	It has rising head - discharge characteristic
C.	It is easier to fabricate.
D.	It cannot run at speeds other than the design speed.
Answer» A. It has a falling head - discharge characteristic.

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Fluid Mechanics and Hydraulic Machines

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