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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Flow occurring in a pipeline when a valve is being opened is

unsteady
steady
vortex
laminar

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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.

Difference
Sum
Product
None of these

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Hydraulics and Fluid Mechanics in ME
In impulse Turbine, energy available at the inlet is in the form of

None of these
Strain Energy
Potential Energy
Kinetic energy

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Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth for a circular pipe of diameter (d) is

d/6
d
d/4
d/2

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Hydraulics and Fluid Mechanics in ME
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)

wAx
wx
wA/x
wA

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Hydraulics and Fluid Mechanics in ME
The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

H/(H + hf )
(H - hf )/H
H/(H - hf )
(H + hf )/H

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