Question $8(18\%)$

I. Does the Conservation of energy around a loop apply to the following Loop? Why

or why not? The head loss and direction of flow in each pipe are marked on the

figure.

II$.$ Find the magnitude and direction of flow through Pipe P$9$ so that the continuity is

maintained at Node $J5$ in the following figure. The rate of withdrawl at the node is

indicated in the figure.

III. $($iv$)$ Determine the flow rate for which sewer CD should be designed.

TV$.$ A metallic water tank is showing signs of internal corrosion and it is decided to

provide cathodic protection. With the help of a diagran, show how you will

protect this tank.