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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
laminar
vortex

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Hydraulics and Fluid Mechanics in ME
The atmospheric pressure with rise in altitude decreases

first steeply and then gradually
unpredictable
linearly
first slowly and then steeply

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

buoyancy
upthrust
all the above are correct
center of pressure

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Hydraulics and Fluid Mechanics in ME
Rotameter is a device used to measure

velocity of fluid
rotation
absolute pressure
flow

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio is

0.56
0.26
0.46
0.36

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Hydraulics and Fluid Mechanics in ME
The rise of liquid along the walls of a revolving cylinder about the initial level is _________ the depression of the liquid at the axis of rotation.

Less than
None of these
Same as
More than

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