The efficiency of power transmission through pipe is (where H = Total supply head and hf = Head lost due to friction in the pipe)
A. $$\frac{{{\text{H}} - {{\text{h}}_{\text{f}}}}}{{\text{H}}}$$
B. $$\frac{{\text{H}}}{{{\text{H}} - {{\text{h}}_{\text{f}}}}}$$
C. $$\frac{{{\text{H}} + {{\text{h}}_{\text{f}}}}}{{\text{H}}}$$
D. $$\frac{{\text{H}}}{{{\text{H}} + {{\text{h}}_{\text{f}}}}}$$
Answer: Option A
This Question Belongs to Mechanical Engineering >> Hydraulics And Fluid Mechanics In ME
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