Question $1$

$[8$ Marks$]$

A $6$ cm diameter castor oil pipe expands gradually to $9$ cm diameter pipe. The walls of expansion section are angled $10C$ from axis. The average velocity and pressure of castor oill before expansion section are $7\frac{m}{s}$ and $150$ kPa respectively. Determine the head loss in the expansion section and the pressure in the larger diameter.

Question $2$

$[15$ Marks$]$

Water at $10C$ flows from a large reservoir to a smaller one through a $5$ cm diameter cast iron piping, as shown in Figure $1.$ Determine the elevation $1,$ for flow rate of $6\frac{L}{s}.$ The fraction factor is $0\mathrm{.}0315.$