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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

2700
21000
2100
10000

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Hydraulics and Fluid Mechanics in ME
Which of the following statement is correct as regard to water wheels?

They give constant efficiency, even if the discharge is not constant
They have slow speeds
They are suitable even for low water heads
All of these

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Hydraulics and Fluid Mechanics in ME
The intensity of pressure at any point, in a liquid, is __________ to the depth of liquid from the surface.

Equal
Directly proportional
Inversely proportional
None of these

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Hydraulics and Fluid Mechanics in ME
Discharge of a centrifugal pump is (where N = Speed of the pump impeller)

Directly proportional to N
Inversely proportional to N
Directly proportional to N²
Inversely proportional to N²

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Hydraulics and Fluid Mechanics in ME
A structure, whose width is __________ the width of the channel, is called a flumed structure.

More than
Equal
Less than
None of these

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water from deep wells?

Air lift pump
Reciprocating pump
Jet pump
Centrifugal pump

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