QUESTION $1$

Three reservoirs A$,$ B$,$ and C are connected by a pipe system. The lengths and

diameters of the pipes $1,2$ and $3$ are $800m,1000m,800m$ and $300mm,200mm$

and $150$ mm respectively. Determine the piezometric head at the junction $($D$).$ Take

the friction factor as $0\mathrm{.}005$ for all the pipes.

QUESTION $2$

Two reservoirs are connected with a pipeline of diameter $0\mathrm{.}6$ m and length $64$ km $.$

The two surface levels differ with a height of $180$ m $.$ Find the velocity and discharge

in the system. If the discharge needs to be increased with $50\%$ by means of the

second pipe laid in parallel over the last section $($that is to say$)$ the last part of the

pipe with the same diameter. Assume entry and exit for pipes to be sharp and

determine the length of this pipe. Take coefficient of friction as $0\mathrm{.}005$ for both pipes.