If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by
A. $${\text{H}} = \frac{{{\text{Hg}}}}{{{\text{hf}}}}$$
B. H = Hg × hf
C. H = Hg + hf
D. H = Hg - hf
Answer: Option D
This Question Belongs to Mechanical Engineering >> Hydraulics And Fluid Mechanics In ME
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