Problem$-2$

All the pipes in Figure bellow have a Hazen$-$Williams coefficient of $100.$ Pipe $AB$ is $1,000m$ long

and has a diameter of $60cm.$ Pipe $BC1$ is $900m$ long with a diameter of $30cm,$ while pipe $BC2$ has

a length of $1,000m$ and a diameter of $45cm.$ Pipe $CD$ is $800m$ long with a diameter of $60cm.$ The

water surface elevation of reservoir $A$ is $80m(H_A)$ and reservoir $D(H_D)$ is $30m.$ Determine the

discharge in each pipe and the total head at points $B$ and $C$ if $Q_B=0\mathrm{.}25\frac{m^3}{s}$ and $Q_C=0\mathrm{.}15\frac{m^3}{s}.$

Ignore minor losses.a concrete channel n$=0\mathrm{.}013$ with an unusual cross section determine channel slope