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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Weir
Nozzle
Notch
Mouthpiece

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Hydraulics and Fluid Mechanics in ME
The unit discharge through the turbine is

Q/H
Q/H3/2
Q/√H
Q/H²

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Hydraulics and Fluid Mechanics in ME
For a body floating in a liquid the normal pressure exerted by the liquid acts at

e.g. of the body
bottom surface of the body
all points on the surface of the body
metacentre

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Hydraulics and Fluid Mechanics in ME
The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine, which

Develops unit power under unit speed
Develops unit power under unit head
Delivers unit discharge under unit speed
Delivers unit discharge under unit head

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Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Sum
Difference
Product
None of these

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Hydraulics and Fluid Mechanics in ME
The total energy line lies over the centre line of the pipe by an amount equal to

Velocity head
Pressure head - velocity head
Pressure head
Pressure head + velocity head

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