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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z + p/w - v²/2g = constant
Z + p/w + v²/2g = constant
Z - p/w - v²/2g = constant
Z - p/w + v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is successfully used for lifting water to the turbines?

Centrifugal pump
Reciprocating pump
Jet pump
Air lift pump

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

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Hydraulics and Fluid Mechanics in ME
The Francis formula for the discharge over Cipoletti weir is

1.84 LH5/2
1.84 LH3/2
1.84 LH1/2
1.84 LH

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Hydraulics and Fluid Mechanics in ME
Which of the following is dimensionless?

Specific speed
Specific gravity
Specific weight
Specific volume

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

Very low pressure
Difference of pressure between two points
Pressure in pipes, channels etc.
Atmospheric pressure

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