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Hydraulics & Fluid Mechanics

Hydraulics & Fluid Mechanics
Pressure of the order of 10''' torr can be measured by

Micro-manometer
Pirani Gauge
Bourdon tube
ionisastion gauge

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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

2.4 m above the hydraulic gradient
10.0 m above the hydraulic gradient
5.0 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 floating body
submerged body
displaced volume of the fluid
volume of the fluid vertically above the body

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

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

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Hydraulics & Fluid Mechanics
The units of viscosity are

newton-sec/metre
newton-sec/metre2
metre2/se
kg sec/metre

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Hydraulics & Fluid Mechanics
If 850 kg liquid occupies volume of one cubic meter, men 0.85 represents its

specific weight
specific mass
specific density
specific gravity

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