Hydraulics & Fluid Mechanics
Fluid is a substance that

cannot remain at rest under action of any shear force
cannot be subjected to shear forces
always expands until it fills any container
has the same shear stress.at a point regardless of its motion

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Hydraulics & Fluid Mechanics
Metacentric height is given as the distance between

the center of gravity of the body and the center of pressure
the center of gravity of the body and the center of buoyancy
center of buoyancy and metacentre
the center of gravity of the body andthe meta center

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Hydraulics & Fluid Mechanics
Non uniform flow occurs when

the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
velocity, depth, pressure, etc. change from point to point in the fluid flow
the direction and magnitude of the velocity at all points are identical
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

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