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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The center of gravity of the volume of the liquid displaced by an immersed body is called

center of buoyancy
metacentre
center of pressure
center of gravity

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

Less than
Equal to
None of the listed here
More than

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Hydraulics and Fluid Mechanics in ME
The type of centrifugal pump preferred for a specific speed of 20 r.p.m. is

Medium speed pump with radial flow at outlet
High speed pump with radial flow at outlet
Slow speed pump with radial flow at outlet
High speed pump with axial flow at outlet

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Hydraulics and Fluid Mechanics in ME
In reaction turbine, draft tube is used

To transport water downstream without eddies
To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section
To increase flow rate
For safety of turbine

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Hydraulics and Fluid Mechanics in ME
The pressure measured with the help of a Piezometer tube is in

All of these
N/m2
N/mm2
Head of liquid

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Hydraulics and Fluid Mechanics in ME
For a body floating in a liquid the normal pressure exerted by the liquid acts at

metacentre
e.g. of the body
all points on the surface of the body
bottom surface of the body

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