Question

Consider the following statements:

P. Minor losses do not make significant effect in long pipes.

Q. The friction factor in fluid flowing through pipe depends upon Reynolds number only.

R. The head loss in fluid flowing through pipe due to friction is a minor loss and can be neglected in pipe network problems.

S. Head loss at the entrance of pipe is half the head loss at exit.

The correct option for above statements is :

• A. P-True, Q-True, R-False, S-True
• B. P-False, Q-False, R-False, S-False
• C. P-True, Q-True, R-False, S-False
• D. P-True, Q-False, R-False, S-True

Answer 1

The correct option is D P-True, Q-False, R-False, S-True

$\cdot$ The friction factor in fluid flowing through pipe depends upon Reynolds number and wall roughness.

$\cdot$ The head loss due to friction is major loss.

$Headlossatentrance=\frac{0.5V^2}{2g}$

$Headlossatexit=\frac{V^2}{2g}$