OBSERVATION

Formulaes

$Q_{}=\frac{k_{}}{}\sqrt{h}$

${\mathrm{B.P}}_{}=\frac{{\mathrm{2\pi NWReg}}_{}}{{\mathrm{60000}}_{}}$

${\mathrm{W.P}}_{}=\frac{{\mathrm{wQH}}_{}}{{\mathrm{1000}}_{}}\mathrm{KW}$

Provided Data

Specific weight of Water = 9810 N/m3
Mean diameter of the brake drum, D = 200 mm
Speed, N = 1000 rpm
k = 21.1