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Hydraulics & Fluid Mechanics

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

viscosity
co-efficient of viscosity
osmosis
surface tension

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

force of cohesion
atmospheric pressure
force of adhesion
surface tension

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Hydraulics & Fluid Mechanics
A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?

25 m/sec
50 m/sec
2 m/sec
10 m/sec

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Hydraulics & Fluid Mechanics
The surface tension of mercury at normal temperature compared to that of water is

same
more or less depending on size of glass tube
more
less

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

turbulent flow
one dimensional flow
steady flow
uniform flow

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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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