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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

More than
None of these
Equal to
Less than

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Hydraulics and Fluid Mechanics in ME
The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

Twice the depth
Half the depth
Half the breadth
Twice the breadth

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Hydraulics and Fluid Mechanics in ME
An odd shaped body weighing 7.5 kg and occupying 0.01 m3 volume will be completely submerged in a fluid having specific gravity of

1.2
1
0.75
0.8

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

e.g. of floating body
does not exist
center of pressure of displaced volume
centroid of the displaced volume of fluid

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Hydraulics and Fluid Mechanics in ME
The power produced by the reaction turbine is ________ to the head of water.

4th power
Directly proportional
Inversely proportional
None of these

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Hydraulics and Fluid Mechanics in ME
In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle 'θ'. Sensitivity of inclined tube to sensitivity of U-tube is equal to

1/Sinθ
1/Cosθ
Sinθ
Cos θ

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