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Hydraulics and Fluid Mechanics in ME

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

Higher
Lower
Higher/lower depending on temperature
Same

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Hydraulics and Fluid Mechanics in ME
The discharge through a siphon spillway is

Cd × a × √(2g) × H2
Cd × a × √(2g) × H3/2
Cd × a × √(2g) × H5/2
Cd × a × √(2gH)

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Hydraulics and Fluid Mechanics in ME
Which of the following instrument can be used for measuring speed of a submarine moving in deep sea

hot wire anemometer
pitot tube
Venturimeter
rotameter

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is suitable for small discharge and high heads?

Axial flow pump
Reciprocating pump
Mixed flow pump
Centrifugal pump

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Hydraulics and Fluid Mechanics in ME
When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

√2gH
0.707 a. √2gH
0.5 a. √2gH
0.855 a. √2gH

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

More than
Equal to
None of the listed here
Less than

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