For the pipe shown in Fig. P$-2\mathrm{.}1,$ neglect all minor losses and calculate the velocity of the jet and the discharge in the pipe. Plot the HGL and EGL. Check $f$ on the Moody diagram.

In Fig. P$-2\mathrm{.}2,$ water flows from reservoir $A$ to $B$ at a water temperature of $10C.$ Given the cast$-$iron pipe length $300m$ and diameter $1m,$ use the Moody diagram to determine the discharge when $H=18m$ and $h=3m.$ Plot the HGL and the EGL and find Fig. P$-2\mathrm{.}1$ the pressure at point $P$ halfway between the two reservoirs.

Three Reservoirs

$3.$ For the system shown in Fig. P$-2\mathrm{.}3,$ assume $f=0\mathrm{.}02$ and determine the discharges in the three pipes and the elevation of the EGL at the junction, given

$k=\frac{8fL}{g{}^2{D}^5}$

Fig. P$-2\mathrm{.}2$

Fig.