R

Ram Sharma • 193.88K Points
Coach

Q. 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
  • (B) Decrease
  • (C) Remain unchanged
  • (D) Increase or decrease depending on the pipe material
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