Question

A pipe is defined as 'hydraulically smooth', if the friction factor

a.

is not a function of Reynolds number.

b.

for a given Reynolds number remains constant even on further smoothening of the pipe.

c.

is zero irrespective of the Reynolds number.

d.

none of these.

Answer: (b).for a given Reynolds number remains constant even on further smoothening of the pipe.

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Q. A pipe is defined as 'hydraulically smooth', if the friction factor

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