Irrigation Engineering
The scour depth D of a river during flood, may be calculated from the Lacey's equation

D = 0.47 (Q/f)2/3
D = 0.47 (Q/f)
D = 0.47 (Q/f)1/3
D = 0.47 (Q/f)1/2

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

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
All listed here
Total pressure on the surface is equal to ωx̅

ANSWER DOWNLOAD EXAMIANS APP

Irrigation Engineering
A deep well

is always deeper than a shallow well
is weaker structurally than a shallow well
has more discharge than a shallow well
both (A) and (B)

ANSWER DOWNLOAD EXAMIANS APP