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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The Francis formula for the discharge over Cipoletti weir is

1.84 LH1/2
1.84 LH
1.84 LH5/2
1.84 LH3/2

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Hydraulics and Fluid Mechanics in ME
The maximum thickness of boundary layer in a pipe of radius r is

r
r/2
2r

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Hydraulics and Fluid Mechanics in ME
Two pipe systems can be said to be equivalent, when the following quantites are same

friction loss and flow
length and diameter
flow and length
friction factor and diameter

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Hydraulics and Fluid Mechanics in ME
High specific speed of turbine implies it is

Impulse turbine
None of the listed here
Francis turbine
Propeller turbine

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Hydraulics and Fluid Mechanics in ME
A balloon lifting in air follows the following principle

Archimedes principle
principle of buoyancy
law of gravitation
All of these

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

maximum
zero
non-zero finite
minimum

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