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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.6
0.3
0.4
0.83

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Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

the nature of the liquid and the solid
both of die above
any one of the above
the material which exists above the free surface of the liquid

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Hydraulics and Fluid Mechanics in ME
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is

6
1
7
5

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Hydraulics and Fluid Mechanics in ME
The pressure at the summit of a syphon is

more than atmospheric
equal to atmospheric
None of these
less than atmospheric

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

designing models so that the result can be converted to prototypes
comparing two identical equipments
hydraulic designs
comparing similarity between design and actual equipment

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

Centre of pressure
None of the listed here
Centre of buoyancy
Metacentre

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