Question $2$a:

If the pressure $21$ ft below the free surface of a liquid is $48$ psi $,$ calculate the following properties of the liquid. Show all the calculations in detail up to up to two decimal places. $(15$ points$)$

$($i$)$ Specific weight $(10$ points$)$

$($ii$)$ Specific gravity $(5$ points$)$

Question $2$b:

For the simple pipe system carrying water is shown in the following figure. The pressures at sections $1,2,$ and $3$ are $p_1=30$kPa,$p_2=20$kPa, and $p_3=8$kPa respectively. The discharge is $12\frac{L}{s}.$ Calculate the following in SI unit system up to three decimal places. Show all calculation steps for full points. $($total $20$ points$)$

$($i$)$ Calculate velocities in the pipe between sections $1$&$2$ and $2$&$3.(5$ points$)$

$($ii$)$ Calculate minor loss due to the bends between sections $2$&$3.$ Bending loss coefficient, Kv is $0\mathrm{.}8.(3$ points$)$

$($iii$)$ Calculate the headloss between sections $1$&$2$ and the headloss between sections $1$&$3.(12$ points$)$