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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a syphon, an air vessel is provided

at the inlet
at the outlet
ay nay point between inlet and outlet
at the summit

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Hydraulics and Fluid Mechanics in ME
The stress-strain relation of the Newtonian fluid is

Linear
Parabolic
Hyperbolic
Inverse type

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Hydraulics and Fluid Mechanics in ME
In a depressed nappe

The pressure above the nappe is negative
The pressure above the nappe is atmospheric
The pressure below the nappe is negative
The pressure below the nappe is atmospheric

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

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

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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 breadth
Half the breadth
Half the depth
Twice the depth

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Hydraulics and Fluid Mechanics in ME
The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately

20 mm
30 mm
5 mm
10 mm

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