Question

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.

f₁ = f₂

b.

f₁ < f₂

c.

f₁ > f₂

d.

data not sufficient to relate f₁ & f₂

Answer: (c).f₁ > f₂

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Q. 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...

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