Hydraulics and Fluid Mechanics in ME
In open channels, the specific energy is the

Total energy measured with respect to the datum passing through the bottom of the channel
Kinetic energy plotted above the free surface of water
Total energy per unit discharge
Total energy measured above the horizontal datum

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Hydraulics and Fluid Mechanics in ME
When a body is placed over a liquid, it will float if

None of these
Gravitational force is less than the up-thrust of the liquid
Gravitational force is equal to the up-thrust of the liquid
Gravitational force is more than the up-thrust of the liquid

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