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Hydraulics and Fluid Mechanics in ME

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

Three times
Five times
Four times
Double

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Hydraulics and Fluid Mechanics in ME
Motion of a liquid in a volute casing of a centrifugal pump is an example of

Rotational flow
Spiral vortex flow
Forced spiral vortex flow
Radial

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Hydraulics and Fluid Mechanics in ME
In reaction turbine, draft tube is used

To increase flow rate
To transport water downstream without eddies
To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section
For safety of turbine

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

Horizontal
First rise and then fall
Nearly horizontal
Steep

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

Nearly horizontal
First rise and then fall
Horizontal
Steep

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

An ellipse
None of these
A paraboloid
A triangle

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