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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Rain drops are spherical because of

surface tension forces
viscosity
air resistance
atmospheric pressure

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Hydraulics and Fluid Mechanics in ME
A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at vater surface. The hydrostatic force on square surface is

9,000 kg
27,000 kg
13,500 kg
18,000 kg

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Hydraulics and Fluid Mechanics in ME
Density of water is maximum at

100°C
4°C
0°C
0°K

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Hydraulics and Fluid Mechanics in ME
The depth of center of pressure of an immersed surface, inclined at an angle 'θ' with the liquid surface lies at a distance equal to __________ the center of gravity.

IG sinθ/Ax̅ above
IG sin²θ/Ax̅ below
IG sinθ/Ax̅ below
IG sin²θ/Ax̅ above

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Hydraulics and Fluid Mechanics in ME
Water is _________ liquid.

A compressible
Both A and B
An incompressible
None of these

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Hydraulics and Fluid Mechanics in ME
The loss of pressure head in case of laminar flow is proportional to

(Velocity)2
(Velocity)3
(Velocity)4
Velocity

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