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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Eight times
Double
Sixteen times
Four times

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Hydraulics and Fluid Mechanics in ME
Center of pressure on an inclined plane is

At metacentre
Above the Centroid
At the Centroid
Below the Centroid

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Hydraulics and Fluid Mechanics in ME
The top of the weir over which the water flows is known as

Sill or crest
None of these
Orifice
Nappe or vein

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Hydraulics and Fluid Mechanics in ME
The sheet of water flowing over a notch or a weir is known as

Sill or crest
None of these
Orifice
Nappe or vein

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Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML r²
ML°T⁻²
ML°T
ML²T²

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Hydraulics and Fluid Mechanics in ME
A nozzle placed at the end of a water pipe line discharges water at a

Low pressure
Low velocity
High velocity
High pressure

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