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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Mixed flow pump
Axial flow pump
Reciprocating pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
In a depressed nappe

The pressure below the nappe is negative
The pressure below the nappe is atmospheric
The pressure above the nappe is negative
The pressure above the nappe is atmospheric

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Hydraulics and Fluid Mechanics in ME
The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)

0.75v²/2g
0.375v²/2g
0.5v²/2g
v²/2g

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Inlet guide blades
Backward curved blades
Adjustable blades
Vaned diffusion casing

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Hydraulics and Fluid Mechanics in ME
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

2H/3
3H/4
H/2
H/3

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Hydraulics and Fluid Mechanics in ME
If the depth of water in an open channel is greater than the critical depth, the flow is called

Turbulent flow
Torrential flow
Critical flow
Tranquil flow

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