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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body is called

buoyancy
center of pressure
all the above are correct
upthrust

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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
High specific speed of turbine implies it is

None of the listed here
Francis turbine
Propeller turbine
Impulse turbine

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Hydraulics and Fluid Mechanics in ME
The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

Double
Three to four times
Five to six times
Equal to

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

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Hydraulics and Fluid Mechanics in ME
According to Francis formula, the discharge over a rectangular weir is (where n = Number of end contractions)

(2/3) × Cd (L - 0.1nH) × √(2g) × H3/2
(2/3) × Cd (L - nH) × √(2g) × H²
(2/3) × Cd (L - nH) × √(2g) × H5/2
(2/3) × Cd (L - nH) × √(2gh)

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