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Hydraulics & Fluid Mechanics

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

0°K
4°C
20°C
0°C

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Hydraulics & Fluid Mechanics
The difference of pressure between the inside and outside of a liquid drop is

(d)p = 2T/r
(a)p = Txr
p = T/2r
(b)p = T/r

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Hydraulics & Fluid Mechanics
For measuring flow by a venturimeter, if should be installed in

vertical line
inclined line with upward flow
in any direction and in any location.
horizontal line

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Hydraulics & Fluid Mechanics
According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to

more than the weight of the body
less than the weight of the body
weight of the fluid displaced by the body
the weight of the body

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

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Hydraulics & Fluid Mechanics
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called

osmosis
viscosity
surface tension
co-efficient of viscosity

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