Hydraulics & Fluid Mechanics
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

weight of the fluid displaced by the body
more than the weight of the body
the weight of the body
less than the weight of the body

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Hydraulics & Fluid Mechanics
Two dimensional flow occurs when

the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane
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 velocity at all points are identical
the magnitude and direction of the velocity do not change from point to point in the fluid

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Hydraulics & Fluid Mechanics
Choose the wrong statement

fluids conform to the shape of the con-taining vessels
when in equilibrium, fluids cannot sustain tangential forces
fluids are capable of flowing
when in equilibrium, fluids can sustain shear forces

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