For maximum efficiency of a series of curved vanes, the speed is – McqOptions

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1.	For maximum efficiency of a series of curved vanes, the speed is
A.	Equal to the jet speed
B.	3/4 of the jet speed
C.	1/2 of the jet speed
D.	1/3 of the jet speed.
Answer» D. 1/3 of the jet speed.

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