Q#$4$ Water at $61F$ is pumped from a large reservoir into the top of an overhead tank using standard $2$ in diameter steel pipe $($ID$=2\mathrm{.}067$ in$.).$ The reservoir and the overhead tank are open to the atmosphere and the difference in vertical elevation between the water surface in the reservoir and the discharge point at the top of the overhead tank is $70ft.$ The length of the pipeline is $1500ft.$ One gate valve, one globe valve, two Tees and three $90$ elbows have been used. The efficiency of the pump is $40$ percent. If the Low rate of v$/$atsi is to be maintained at $50gpm$ and the water temperature remains constant at $61F.$ Show which factor has the maximum friction loss produced in the flow system. Take $f=0\mathrm{.}0057$