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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

Two-dimensional flow
Three-dimensional flow
One-dimensional flow
Four-dimensional flow

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Hydraulics and Fluid Mechanics in ME
In an internal mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to height of the liquid above the vena contracta.

Equal to
None of these
More than
Less than

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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
A paraboloid
An ellipse

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Any one of these
Volute casing
Vortex casing
Volute casing with guide blades

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Hydraulics and Fluid Mechanics in ME
A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is

5kN
20 kN
15 kN
lOkN

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Hydraulics and Fluid Mechanics in ME
The mass per unit volume of a liquid at a standard temperature and pressure is called

Specific gravity
Specific weight
Mass density
None of these

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