In turbulent flow, a rough pipe has the same friction factor as a smoo – McqOptions

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1.	In turbulent flow, a rough pipe has the same friction factor as a smooth pipe____________________?
A.	In the zone of complete turbulence
B.	When the roughness projections are much smaller than the thickness of the laminar film
C.	Everywhere in the transition zone
D.	When the friction factor is independent of the Reynold’s number
Answer» C. Everywhere in the transition zone

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