Question A$2.$

Water at $25\backslash$deg C is pumped from a lake as shown in Figure below. What would be maximum allowable value of

h $($in Figure below$)$ if the liquid volumetric flowrate is $20($m$^(3))/($h$),$ and the tube internal diameter is $5$ cm $?$ The

tube roughness surface is e$=0\mathrm{.}045$mm and friction loss coefficient for the entrance K$\_($f$)=1$ and for elbow is

$0\mathrm{.}75.$

$(11$ marks$)$