For laminar flow in circular pipes, the Darcy’s friction factor f is – McqOptions

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1.	For laminar flow in circular pipes, the Darcy’s friction factor f is equal to_________________?
A.	16/Re
B.	32/ Re
C.	64/ Re
D.	none of the above where R,, is Reynolds number
Answer» D. none of the above where R,, is Reynolds number

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