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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

1.84(L - 0.1nH)H3/2
1.84(L - nH)H2
1.84(L - 0.1nH)H5/2
1.84(L - nH)H3

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

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

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Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece is

0.855
0.5
0.707
0.375

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Hydraulics and Fluid Mechanics in ME
The pressure less than atmospheric pressure is known as

Vacuum pressure
All of the listed here
Negative gauge pressure
Suction pressure

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is preferred for flood control and irrigation applications?

Axial flow pump
Reciprocating pump
Mixed flow pump
Centrifugal pump

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

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

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