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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
The region between the separation streamline and the boundary surface of the solid body is known as

lift
boundary layer
drag
wake

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Hydraulics & Fluid Mechanics
The discharge through a V- notch varies as

H3’2
H5/2
H1/2
H5’4 where H is head.

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Hydraulics & Fluid Mechanics
The line of action of the buoyant force acts through the

center of the volume of floating body
centroid of the volume of fluid vertically above the body
centriod of the displaced volume of fluid
center of gravity of any submerged body

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Hydraulics & Fluid Mechanics
Surface energy per unit area of a surface is numerically equal to

force of adhesion
surface tension
force of cohesion
atmospheric pressure

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Hydraulics & Fluid Mechanics
When a body floating in a liquid, is displaced slightly, it oscillates about

e.g. of body
metacentre
center of buoyancy
center of pressure

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Hydraulics & Fluid Mechanics
The flow which neglects changes in a transverse direction is known as

steady flow
uniform flow
turbulent flow
one dimensional flow

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