In turbulent flow, a rough pipe has the same friction factor as a smooth pipe

Question: 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: Option B

Explanation:

No answer description available for this question.