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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Medium specific speed of a pump implies it is

Mixed flow pump
Axial flow pump
Centrifugal pump
Any one of the above

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Hydraulics and Fluid Mechanics in ME
The volumetric change of the fluid caused by a resistance is known as

Volumetric strain
Volumetric index
Compressibility
Adhesion

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Hydraulics and Fluid Mechanics in ME
Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the order of

0.848
0.392
0.688
0.492

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Hydraulics and Fluid Mechanics in ME
The force exerted by a jet of water (in a direction normal to flow) impinging on a fixed plate inclined at an angle θ with the jet is

(waV²/2g) × sin 2θ
(waV/2g) × sin θ
(waV/g) × sin θ
(waV²/g) × sin θ

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Hydraulics and Fluid Mechanics in ME
Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by

0.15
0.05
0.2
0.1

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

Air lift pump
Centrifugal pump
Reciprocating pump
Jet pump

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