Hydraulics and Fluid Mechanics in ME
When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid

Remains horizontal
Becomes curved
Falls on the front end
Falls on the back end

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

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