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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

Equal to
1.2 times
1.8 times
Double

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Hydraulics and Fluid Mechanics in ME
By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently saving of power. This saving in case of a single acting reciprocating pump is

0.392
0.848
0.884
0.488

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

linear
parabolic
hyperbolic
inverse type

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Hydraulics and Fluid Mechanics in ME
Unit of surface tension is

Energy/unit area
Both of the above
It has no units
Velocity/unit area

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Hydraulics and Fluid Mechanics in ME
A flow through a long pipe at decreasing rate is called __________ uniform flow.

Unsteady
Steady
Both A and B
None of these

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Hydraulics and Fluid Mechanics in ME
For very great pressures, viscosity of moss gases and liquids

shows erratic behaviour
increases
remains same
decreases

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