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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Ay between two stream lines represents

velocity
discharge
head
pressure

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

volume of the floating body
volume of the fluid vertically above the body
displaced volume of the fluid
submerged body

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Hydraulics & Fluid Mechanics
The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is

1/3
1/2
1/4
2/3

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Hydraulics & Fluid Mechanics
Uniform flow occurs when

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

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

H3’2
H5’4 where H is head.
H5/2
H1/2

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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.
above the center of buoyancy
below the center of buoyancy

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