Hydraulics and Fluid Mechanics in ME
According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

flv²/2gd
flv²/gd
4flv²/2gd
3flv²/2gd

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Hydraulics and Fluid Mechanics in ME
Coefficient of velocity is defined as the ratio of

None of these
Actual discharge through an orifice to the theoretical discharge
Area of jet at vena contracta to the area of orifice
Actual velocity of jet at vena contracta to the theoretical velocity

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure at any point, in a liquid, is

Directly proportional to the depth of liquid from the surface
Inversely proportional to the depth of liquid from the surface
Directly proportional to the length of the vessel containing liquid
Directly proportional to the area of the vessel containing liquid

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