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

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Hydraulics and Fluid Mechanics in ME
Water is a __________ fluid.

Ideal
Newtonian
Non-Newtonian
Real

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Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of o floating in a fluid of same specific gravity a will

be fully immersed with top surface at fluid surface
float over fluid
partly immersed
sink to bottom

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Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Nozzle
Mouthpiece
Notch
Weir

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

Between 2000 and 2800
More than 2800
None of these
Less than 2000

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Hydraulics and Fluid Mechanics in ME
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

IG / Ax̅ below
IG / Ax̅ above
Ax̅ / IG below
Ax̅ / IG above

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