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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Weber's number
Froude's number
Euler's number
Reynold's number

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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
None of these
Product

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Hydraulics and Fluid Mechanics in ME
For pipes, turbulent flow occurs when Reynolds number is

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

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Hydraulics and Fluid Mechanics in ME
The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

Equal to
Less than
None of these
More than

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Hydraulics and Fluid Mechanics in ME
Differential monometer is used to measure

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

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Hydraulics and Fluid Mechanics in ME
In an external mouthpiece, the absolute pressure head at vena contracta is __________ the atmospheric pressure head by an amount equal to 0.89 times the height of the liquid, above the vena contracta.

None of these
More than
Equal to
Less than

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