Hydraulics and Fluid Mechanics in ME
A right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out, then the pressure intensity at the center of bottom is

one-fourth its value when cylinder was full
cannot be predicted from the given data
one-half its value when cylinder was full
zero

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

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

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

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

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