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Hydraulics and Fluid Mechanics in ME

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

parabolic
hyperbolic
linear
inverse type

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Hydraulics and Fluid Mechanics in ME
The centrifugal pump preferred for a specific speed between 80 to 160 r.p.m. is

High speed with radial flow at outlet
High speed with mixed flow at outlet
Medium speed with radial flow at outlet
Slow speed with radial flow at outlet

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Hydraulics and Fluid Mechanics in ME
Center of buoyancy is the

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

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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

High pressure
Low velocity
Low pressure
High velocity

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Hydraulics and Fluid Mechanics in ME
Principle of similitude forms the basis of

comparing two identical equipments
hydraulic designs
designing models so that the result can be converted to prototypes
comparing similarity between design and actual equipment

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Hydraulics and Fluid Mechanics in ME
The flow in a pipe is neither laminar nor turbulent when Reynold number is

None of these
Less than 2000
Between 2000 and 2800
More than 2800

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