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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Coefficient of discharge Cd is equal to (where Cc = Coefficient of contraction, Cv = Coefficient of velocity, and Cr = Coefficient of resistance)

Cc × Cv
Cc × Cr
Cc/Cr
Cv × Cr

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Hydraulics and Fluid Mechanics in ME
The angle of taper on draft tube is

Less than 8°
Greater than 8°
Greater than 5°
Greater than 15°

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Hydraulics and Fluid Mechanics in ME
For 450 m head of water, _________ shall be used.

Francis turbine
Kaplan turbine
None of these
Pelton wheel

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Hydraulics and Fluid Mechanics in ME
The pressure of air __________ with the increase of height from the surface of the earth.

Increases
Does not change
Decreases
None of these

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Hydraulics and Fluid Mechanics in ME
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

None of these
Expands
Does not change
Contracts

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Hydraulics and Fluid Mechanics in ME
The specific weight of water is 1000 kg/m3

All of the listed here
At 4°C temperature
At normal pressure of 760 mm
At mean sea level

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