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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Resultant pressure of the liquid in the case of an immersed body acts through

Metacentre
Centre of gravity
Centre of pressure
Centre of buoyancy

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Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2800, is called

Sub-sonic velocity
Higher critical velocity
Super-sonic velocity
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
Pascal-second is the unit of

dynamic viscosity
pressure
kinematic viscosity
surface tension

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

At mean sea level
All of the listed here
At normal pressure of 760 mm
At 4°C temperature

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Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid is the ratio of

Increase in pressure to the volumetric strain
Shear stress to shear strain
Critical velocity to the viscosity of fluid
Increase in volume to the viscosity of fluid

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

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