The system shown below delivers $0\mathrm{.}13\frac{m^3}{s}$ from the reservoir at Point $A$ to the

reservoir at Point $G.$ The three pipes $($BC$,$ DE$,$ EF$)$ are of equal length and diameter,

such that at the given discharge, the head loss is $5\mathrm{.}0m$ in each pipe.

a$.$ What is the pump head required to deliver the given flow from Point $A$ to Point

G$?$

b$.$ Assume that the velocity head is small enough to ignore so that the EGL and

HGL are coincident. Plot the EGL$/$HGL directly on the sketch above, clearly

showing the elevation of the EGL$/$HGL at Points C$,$ D and E$.$

c$.$ What are the pressures at Points C$,$ D and E$?$

d$.$ If each pipe is $600m$ long and has a diameter of $300mm,$ what is the Hazen$-$

Williams roughness coefficient of the pipes?