Irrigation Engineering
To control the silt entry into a distributary at head regulator, King's vanes are provided which are the walls

Of R.C.C. or steel plate 8 cm thick
Spaced at interval of 1½ times their heights
Of height ⅓rd to ¼th the depth of water in the main canal
All listed here

ANSWER DOWNLOAD EXAMIANS APP

Irrigation Engineering
If A is the area of the surface, x̅ is the depth of its C.G. from the surface of the water and ω is the density of water, then

Total pressure on the surface is equal to ωx̅
All listed here
Depth of the point at which total pressure acts is equal to its moment of inertia divided by Ax̅
Depth of the centre of pressure is 2/3H vertically below the surface

ANSWER DOWNLOAD EXAMIANS APP