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

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

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Hydraulics and Fluid Mechanics in ME
A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury?

The metal piece will simply float over the mercury
Whole of the metal piece will be immersed with its top surface just at mercury level
The metal piece will be immersed in mercury by half
Metal piece will sink to the bottom

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