For the following questions answer them individually
A trapezoidal channel has a bottom width of 6m and side slope of 1:1. The depth of flow is 1.5 m at a discharge of 15 cum/sec. The hydraulic radius and hydraulic average depth of flow respectively are
The unit of kinematic viscosity is
A floating body attains stable equilibrium if its metacentre is
The equation of continuity of flow is based on the principle of conservation of
Weber number is the ratio of inertia force to
If 2% solution of a sewage sample is incubated for 5 days at 20 degrees and depletion of oxygen was found to be 5 ppm, BOD of the sewage is
In a sludge digestion tank, the gas that mainly evolves is
The per capita demand of water is calculated in litres
Zero hardness of water can be achieved by