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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

None of these
A triangle
An ellipse
A paraboloid

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Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

shows erratic behaviour
remains same
increases
decreases

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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

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

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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
lOkN
15 kN
20 kN

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Hydraulics and Fluid Mechanics in ME
The rise of liquid along the walls of a revolving cylinder about the initial level is _________ the depression of the liquid at the axis of rotation.

Less than
Same as
None of these
More than

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Hydraulics and Fluid Mechanics in ME
The maximum efficiency of jet propulsion of a ship with inlet orifices at right angles to the direction of motion of ship, is

0.4
0.8
0.5
0.6

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