Hydraulics and Fluid Mechanics in ME
The discharge over a rectangular weir, considering the velocity of approach, is (whereH1 = H + Ha = Total height of water above the weir, H = Height of water over the crest of the weir, and Ha = Height of water due to velocity of approach)

(2/3) Cd × L.√2g [H1 - Ha]
(2/3) Cd × L. √2g [H13/2 - Ha3/2]
(2/3) Cd × L.√2g [H12 - Ha2]
(2/3) Cd × L. √2g [H15/2 - Ha5/2]

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is the

None of these
Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
Ratio of the work done on the wheel to the energy of the jet
Ratio of the actual work available at the turbine to the energy imparted to the wheel

ANSWER DOWNLOAD EXAMIANS APP

Hydraulics and Fluid Mechanics in ME
The total head of a liquid particle in motion is equal to

Pressure head + kinetic head + potential head
Potential head - (pressure head + kinetic head)
Kinetic head - (pressure head + potential head)
Pressure head - (kinetic head + potential head)

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Hydraulics and Fluid Mechanics in ME