Hydraulics and Fluid Mechanics in ME
The center of pressure of a surface subjected to fluid pressure is the point

on the surface at which resultant pres-sure acts
on the surface at which gravitational force acis
similar to metacentre
at which all hydraulic forces meet

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Hydraulics and Fluid Mechanics in ME
In a forced vortex motion, the velocity of flow is

inversely proportional to its radial distance from the axis of rotation
inversely proportional to the square of its radial distance from the axis of rotation
directly proportional to the square of its radial distance from the axis of rotation
directly proportional to its radial distance from axis of rotation

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Hydraulics and Fluid Mechanics in ME
If a vessel containing liquid moves downward with a constant acceleration equal to ‘g’ then

None of these
there will be vacuum in the liquid
the pressure throughout the liquid mass is atmospheric
the pressure in the liquid mass is greater than hydrostatic pressure

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Hydraulics and Fluid Mechanics in ME
In an inward flow reaction turbine

The water enters the wheel at the outer periphery and then flows towards the center of the wheel
The water enters at the center of the wheel and then flows towards the outer periphery of the wheel
The flow of water is partly radial and partly axial
The water flows parallel to the axis of the wheel

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