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

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1.	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» C. is zero irrespective of the Reynolds number.

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