Hydraulics and Fluid Mechanics in ME
The total energy of each particle at various places in the case of perfect incompressible fluid flowing in continuous stream

May increase/decrease
Remain constant
Keeps on increasing
Keeps on decreasing

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Hydraulics and Fluid Mechanics in ME
Coefficient of resistance is the ratio of

Loss of head in the orifice to the head of water available at the exit of the orifice
Actual velocity of jet at vena-contracta to the theoretical velocity
Actual discharge through an orifice to the theoretical discharge
Area of jet at vena-contracta to the area of orifice

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