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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - nH)H2
1.84(L - 0.1nH)H3/2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water from deep wells?

Reciprocating pump
Air lift pump
Centrifugal pump
Jet pump

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Hydraulics and Fluid Mechanics in ME
Unit of surface tension is

Both of the above
It has no units
Velocity/unit area
Energy/unit area

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Hydraulics and Fluid Mechanics in ME
The ratio of absolute viscosity to mass density is known as

specific viscosity
viscosity index
kinematic viscosity
coefficient of viscosity

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Hydraulics and Fluid Mechanics in ME
Hydrometer is used to determine

relative humidity
specific gravity of solids
specific gravity of gases
specific gravity of liquids

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Hydraulics and Fluid Mechanics in ME
A Francis turbine is used when the available head of water is

25 m to 250 m
None of these
0 to 25 m
Above 250 m

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