## Hydraulics & Fluid Mechanics For a floating body to be in stable equilibrium, its metacentre should be

between e.g. and center of pressure
above the center of gravity.
below the center of buoyancy
above the center of buoyancy

## Hydraulics & Fluid Mechanics Steady flow occurs when

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
the magnitude and direction of the velocity do not change from point to point in the fluid
the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive periods of time

## Hydraulics & Fluid Mechanics To avoid vaporisation in the pipe line, the pipe line over the ridge is laid such that it is not more than

10.0 m above the hydraulic gradient
2.4 m above the hydraulic gradient
6.4 m above the hydraulic gradient

## Hydraulics & Fluid Mechanics Uniform flow occurs when

the flow is streamline
size and cross section change uniformly along length
size and shape of the cross section in a particular length remain constant

## Hydraulics & Fluid Mechanics Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the

force of friction
force of diffusion