Hydraulics & Fluid Mechanics
The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if

the area is horizontal
the area is inclined
the area is vertical
All of these

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Hydraulics & Fluid Mechanics
True one-dimensional flow occurs when

the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time
the direction and magnitude of the veiocity at all points are identical
the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
the magnitude and direction of the velocity do not change from point to point in the fluid

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

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

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