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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

a physical property of the fluid.
independent of the flow
a function of temperature only
dependent on the flow

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Hydraulics and Fluid Mechanics in ME
For very high discharge at low pressure such as for flood control and irrigation applications, following type of pump is preferred

Mixed flow
Centrifugal
Reciprocating
Axial flow

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Hydraulics and Fluid Mechanics in ME
The point at which the resultant pressure on an immersed surface acts, is known as

Centre of gravity
Centre of depth
Centre of immersed surface
Centre of pressure

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Hydraulics and Fluid Mechanics in ME
Francis turbine is best suited for

All types of heads
Medium head application from 24 to 180 m
High head installation above 180 m
Low head installation up to 30 m

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Hydraulics and Fluid Mechanics in ME
A turbine develops 10000 kW under a head of 25 meters at 135 r.p.m. Its specific speed is

175.4 r.p.m.
215.5 r.p.m.
275.4 r.p.m
241.5 r.p.m.

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Hydraulics and Fluid Mechanics in ME
In centrifugal pumps, maximum efficiency is obtained when the blades are

Radial
Straight
Bent backward
Bent forward

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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