Friction factor for turbulent flow in a new pipe is given by
A
$${\text{f}} = \frac{{16}}{{{{\text{N}}_{{\text{Re}}}}}}$$
B
$${\text{f}} = \frac{{0.04}}{{{{\text{N}}_{{\text{Re}}}}^{0.16}}}$$
C
$${\text{f}} = 0.22\,{{\text{N}}_{{\text{Re}}}}^{0.5}$$
D
$${\text{f}} = \frac{{25}}{{{{\text{N}}_{{\text{Re}}}}}}$$
Correct Answer: $${\text{f}} = \frac{{0.04}}{{{{\text{N}}_{{\text{Re}}}}^{0.16}}}$$
