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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The eddy viscosity for turbulent flow is

a physical property of the fluid.
dependent on the flow
independent of the flow
a function of temperature only

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Hydraulics and Fluid Mechanics in ME
A Pelton wheel is

Outward flow impulse turbine
Tangential flow impulse turbine
Inward flow reaction turbine
Inward flow impulse turbine

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Hydraulics and Fluid Mechanics in ME
The discharge over the trapezoidal notch is equal to the discharge over the rectangular notch __________ the discharge over the triangular notch.

Minus
Divide
Plus
None of these

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

None of these
Free
Full
Partially

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Hydraulics and Fluid Mechanics in ME
The Reynold's number of a ship is __________ to its velocity and length.

Square root of velocity
Directly proportional
Inversely proportional
None of these

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Hydraulics and Fluid Mechanics in ME
In an immersed body, center of pressure is

at the center of gravity
could be above or below e.g. depending on density of body and liquid
above the center of gravity
below be center of gravity

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