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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The centre of pressure for a vertically immersed surface lies at a distance equal to __________ the centre of gravity.

Ax̅ / IG above
IG / Ax̅ above
IG / Ax̅ below
Ax̅ / IG below

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

H/3
3H/4
H/2
2H/3

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is turbulent when Reynold number is

None of these
Between 2000 and 2800
More than 2800
Less than 2000

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Sum
None of these
Difference
Product

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Hydraulics and Fluid Mechanics in ME
A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

Coincides with
Lies above
None of these
Lies below

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

Decrease
Increase
May increase or decrease depending on the characteristics of liquid
Remain unaffected

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