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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

Equal
Less than
More than
None of these

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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
Ratio of inertia force to elastic force is known as

Reynold’s number
Froude number
Weber’s number
Mach number

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Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Sub-sonic flow
Super-sonic flow
Sonic flow
Hyper-sonic flow

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Hydraulics and Fluid Mechanics in ME
The optimum value of vane exit angle for a centrifugal pump impeller is

20-25°
30-40°
50-60°
10-15°

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

Elastic force
Pressure force
Gravity force
Surface tension force

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