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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For manometer, a better liquid combination is one having

lower surface tension
higher surface tension
high density and viscosity
surface tension is no criterion

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Hydraulics and Fluid Mechanics in ME
The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be

2000 kg
1500 kg
1000 kg
500 kg

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Hydraulics and Fluid Mechanics in ME
The unit speed of the turbine runner is

N/√H
N/H²
N/H3/2
N/H

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Hydraulics and Fluid Mechanics in ME
A weir is said to be broad crested weir, if the width of the crest of the weir is ________ half the height of water above the weir crest.

None of these
Equal to
More than
Less than

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Hydraulics and Fluid Mechanics in ME
The surface tension of mercury at normal temperature is __________ that of water.

Lower than
Higher than
Same as
None of these

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Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of friction head and very little of vertical lift, then pump characteristics should be

First rise and then fall
Horizontal
Steep
Nearly horizontal

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