The velocity heads of water at the inlet and outlet sections of a draf – McqOptions

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1.	The velocity heads of water at the inlet and outlet sections of a draft tube are 3.5 m and 0.3 m, respectively. The frictional and other losses in the draft tube can be taken as 0.5 m. What is the efficiency of the draft tube?
A.	84.4%
B.	80.0%
C.	77.1%
D.	74.4%
Answer» D. 74.4%

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