A liquid flows through pipes 1 and 2 with the same flow velocity. If – McqOptions

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1.	A liquid flows through pipes 1 and 2 with the same flow velocity. If the ratio of their pipe diameters d1 : d2 be 3:2, what will be the ratio of the head loss in the two pipes?
A.	3:2
B.	9:4
C.	2:3
D.	4:9
Answer» D. 4:9

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