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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

A triangle
None of these
An ellipse
A paraboloid

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Hydraulics and Fluid Mechanics in ME
If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will

tend to move downward and it may finally sink
None of these
rise until its weight equals the buoyant force
float

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Hydraulics and Fluid Mechanics in ME
Liquids

Cannot be compressed
Occupy definite volume
None of the listed here
Are not affected by change in pressure and temperature

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Hydraulics and Fluid Mechanics in ME
Euler's equation in the differential form for the motion of liquids is given by

ρ.dp + g.dz + v.dv = 0
ρ.dp - g.dz + v.dv = 0
dp/ρ - g.dz + v.dv = 0
dp/ρ + g.dz + v.dv = 0

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Hydraulics and Fluid Mechanics in ME
The sheet of water flowing over a notch or a weir is known as

Orifice
Sill or crest
Nappe or vein
None of these

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Hydraulics and Fluid Mechanics in ME
In an immersed body, centre of pressure is

Below be centre of gravity
Above the centre of gravity
At the centre of gravity
Could be above or below e.g. depending on density of body and liquid

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