Question

At what speed the velocity head of water is equal to pressure head of 40 cm of mercury?

Answer 1

Pressure head = p/dg=.04m
Velociy head = v^2/2g
So,
speed= .89m/sec
where d=density g=acceleration due to gravity v=velocity

Answer 2

If the velocity head of a stream of water is equal to 40 cm then the speed of flow of water is