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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Puck up the wrong statement about centrifugal pump

Head a speed²
Power a speed⁴
Discharge a diameter
Head a diameter

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Hydraulics and Fluid Mechanics in ME
Metacentric height is the distance between the metacentre and

water surface
center of gravity
center of pressure
center of buoyancy

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Hydraulics and Fluid Mechanics in ME
A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

0.6
0.3
0.4
0.83

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Hydraulics and Fluid Mechanics in ME
In an internal mouthpiece, if the jet after contraction does not touch the sides of the mouthpiece, then the mouthpiece is said to be

Running full
Running free
Partially running full
Partially running free

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Hydraulics and Fluid Mechanics in ME
If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be

5 meters of water column
2 meters of water column
3 meters of water column
6 meters of water Column

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Hydraulics and Fluid Mechanics in ME
In a depressed nappe

The pressure above the nappe is atmospheric
The pressure above the nappe is negative
The pressure below the nappe is negative
The pressure below the nappe is atmospheric

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