Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.

ata not sufficient to relate f₁ & f₂

Consider two pipes of same length and diameter through which water is

1.	Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.
A.	₁ = f₂
B.	₁ < f₂
C.	₁ > f₂
D.	ata not sufficient to relate f₁ & f₂
Answer» D. ata not sufficient to relate f₁ & f₂

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Consider two pipes of same length and diameter through which water is passed at the same velocity. The friction factor for rough pipe is f₁ and that for smooth pipe is f₂. Pick out the correct statement.

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