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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The velocity corresponding to Reynold number of 2000 is called

Super-sonic velocity
Higher critical velocity
Lower critical velocity
Sub-sonic velocity

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Hydraulics and Fluid Mechanics in ME
A turbine pump is basically a centrifugal pump equipped additionally with

Vaned diffusion casing
Inlet guide blades
Adjustable blades
Backward curved blades

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Hydraulics and Fluid Mechanics in ME
According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)

(2/3) × Cd (L - nH) × √(2g) × H²
(2/3) × Cd (L - nH) × √(2gh)
(2/3) × Cd (L - 0.1nH) × √(2g) × H3/2
(2/3) × Cd (L - nH) × √(2g) × H5/2

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Hydraulics and Fluid Mechanics in ME
One poise is equal to

1 N-s/m2
0.1 N-s/m2
10 N-s/m2
100 N-s/m2

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Hydraulics and Fluid Mechanics in ME
Manometer is used to measure

atmospheric pressure
pressure in pipes, channels etc
very low pressure
difference of pressure between two points

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Hydraulics and Fluid Mechanics in ME
Newton's law of viscosity is a relationship between

Rate of shear strain and temperature
Shear stress and rate of shear strain
Pressure, velocity and temperature
Shear stress and velocity

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