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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

High density
Low surface tension
High surface tension
Low density

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Hydraulics and Fluid Mechanics in ME
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

16/RN
1/RN
4/RN
64/RN

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Hydraulics and Fluid Mechanics in ME
A pitot tube is used to measure the

Discharge through a pipe
Total pressure of liquid flowing in a pipe
Velocity of flow at the required point in a pipe
Pressure difference between two points in a pipe

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Hydraulics and Fluid Mechanics in ME
The upper surface of a weir over which water flows is known is

nappe
sill
weir top
crest

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Hydraulics and Fluid Mechanics in ME
The centre of pressure acts __________ the centre of gravity of immersed surface.

None of these
At
Below
Above

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Centrifugal pump
Axial flow pump
Reciprocating pump
Mixed flow pump

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