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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

None of these
Increases
Decreases
Remain same

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Hydraulics and Fluid Mechanics in ME
The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

Surface tension of liquid
Specific gravity of liquid
Compressibility of liquid
Density of liquid

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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)

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

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Hydraulics and Fluid Mechanics in ME
Bernoulli equation deals with the law of conservation of

mass
work
momentum
energy

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Hydraulics and Fluid Mechanics in ME
The speed of a pressure wave through a pipe depends upon

the original head
the length of pipe
the viscosity of fluid
the bulk modulus for the fluid

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Hydraulics and Fluid Mechanics in ME
In a forced vortex, the velocity of flow everywhere within the fluid is

non-zero finite
maximum
minimum
zero

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