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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Reynold's number is the ratio of the inertia force to the

Surface tension force
Gravity force
Elastic force
Viscous force

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Hydraulics and Fluid Mechanics in ME
Euler's number is the ratio of __________ force to pressure force.

Inertia
Gravity
Viscous
None of these

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Hydraulics and Fluid Mechanics in ME
For a body floating in a liquid the normal pressure exerted by the liquid acts at

e.g. of the body
metacentre
bottom surface of the body
all points on the surface of the body

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

Decreases
Remain same
None of these
Increases

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

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

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Hydraulics and Fluid Mechanics in ME
The losses are more in

turbulent flow
critical flow
laminar flow
transition flow

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