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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dynamic viscosity of most of the liquids with rise in temperature

Increases
Remain unaffected
Decreases
Unpredictable

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Hydraulics and Fluid Mechanics in ME
Poise is the unit of

capillarity
shear stress in fluids
surface tension
viscosity

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Hydraulics and Fluid Mechanics in ME
When the Mach number is less than unity, the flow is called

Sub-sonic flow
Super-sonic flow
Hyper-sonic flow
Sonic flow

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

Q/H3/2
Q/√H
Q/H
Q/H²

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Hydraulics and Fluid Mechanics in ME
Low specific speed of turbine implies it is

Propeller turbine
Francis turbine
Impulse turbine
Any one of the above

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Hydraulics and Fluid Mechanics in ME
For pipes, laminar flow occurs when Roynolds number is

less than 2000
more than 4000
less than 4000
between 2000 and 4000

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MORE MCQ ON Hydraulics and Fluid Mechanics in ME

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