EX$111.-$ Fig. $1$ sho wan branch sist$$m usay $$ni branch l$$ng $60$ m$.$ n$$ tek di ed l$$s d$\backslash$epsi m na di ti d$\backslash$epsi m$,$ b$$t di wan d$\backslash$epsi m na di $\backslash$epsi lbo d$\backslash$epsi m $($standad $\backslash$epsi lbo na $90\backslash$deg $)\backslash$epsi n di friksh$$n na di puddled iron pipes. If di sistem de k$$r $$yl wit sp$$shal wet we na $8\mathrm{.}80$kN$/$m$3,$ k$$l di t$$tal fl$$ na di men paip. Data: v $=4,8$x$10-$m$/$s$,$ di wan d$$n we de wok. $-6$ D$1=102\mathrm{.}3$ mm Pa $=700$ kPa $=$ Pa $=550$ kPa ea D$2=77\mathrm{.}9$ mm OB Glob valv ful opin Fig. $1$ Duya sho $$l di wok we d$$n d$$n du :)