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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Liquids

Occupy definite volume
None of the listed here
Cannot be compressed
Are not affected by change in pressure and temperature

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Hydraulics and Fluid Mechanics in ME
A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is

(bd²/12) + x̅
d²/12 + x̅
b²/12 + x̅
(d²/12 x̅) + x̅

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Hydraulics and Fluid Mechanics in ME
A hydraulic accumulator is a device used to store _________ energy which may be supplied to a machine later on.

None of these
Kinetic
Strain
Pressure

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

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

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Hydraulics and Fluid Mechanics in ME
The maximum number of jets, generally, employed in an impulse turbine without jet interference are

Six
Four
Two
Eight

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Hydraulics and Fluid Mechanics in ME
Viscosity of water in comparison to mercury is

Higher/lower depending on temperature
Lower
Same
Higher

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