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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
THE THEORETICAL VALUE OF COEFFICIENT OF CONTRACTION OF A SHARP EDGED ORIFICE IS

1.01
0.611
0.95
0.86

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Hydraulics & Fluid Mechanics
The density of water is 1000 kg/m3 at

0°C
20°C
4°C
0°K

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

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

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Hydraulics & Fluid Mechanics
A perfect gas

None of these
has constant viscosity
is incompressible
is of theoretical interest

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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

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

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

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

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MORE MCQ ON Hydraulics & Fluid Mechanics

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