Question: Friction factor for a hydraulically smooth pipe at NRe = 2100 is f1. If the pipe is further smoothened (i.e., roughness is reduced), the friction factor at the same value of NRe, will
[A].increase.
decrease.
remain unchanged.
increase or decrease depending on the pipe material.
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.