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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

center of pressure
upthrust
buoyancy
all the above are correct

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Hydraulics and Fluid Mechanics in ME
The total energy line lies over the centre line of the pipe by an amount equal to

Velocity head
Pressure head - velocity head
Pressure head
Pressure head + velocity head

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

center of buoyancy
center of gravity
water surface
center of pressure

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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.

Equal to
Less than
None of the listed here
More than

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Hydraulics and Fluid Mechanics in ME
The total energy line lies over the hydraulic gradient line by an amount equal to the

Pressure head - velocity head
Pressure head + velocity head
Velocity head
Pressure head

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Hydraulics and Fluid Mechanics in ME
The depth ā€˜d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)

0.223 D
0.707 D
0.423 D
0.577 D

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