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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The variation in the volume of a liquid with the variation of pressure is called its

Viscosity
Compressibility
Surface tension
Capillarity

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Hydraulics and Fluid Mechanics in ME
A Francis turbine is used when the available head of water is

25 m to 250 m
Above 250 m
0 to 25 m
None of these

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Hydraulics and Fluid Mechanics in ME
The flow rate in gear pump

Increases with increase in pressure
Decreases with increase in pressure
More or less remains constant with increase in pressure
Unpredictable

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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

Partially running full
Partially running free
Running free
Running full

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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

0.4
0.6
0.3
0.83

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Hydraulics and Fluid Mechanics in ME
The value of mass density in kg-sec-V-m⁴ for water at 0°C is

1
1000
101.9
100.9

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