Hydraulics

In a circular pipe of length L and diameter d, a viscous liquid is flowing with a velocity v. The loss in head, is

A

B

C

D

E none of these.

ANS:A -

hf = FLV^2/2gd.
Coefficient of friction f = 16/Re,
F=4f=4*16/Re.

Substitute all in the formula of hf.

So, A is the correct answer.

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