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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The most efficient section of a channel is

Rectangular
Square
Trapezoidal
Triangular

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must fulfill the following

Continuity equation
Newton’s law of motion
Pascal’ law
Newton’s law of viscosity

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Hydraulics and Fluid Mechanics in ME
The cavitation in reaction turbines is avoided, to a great extent by

Using stainless steel runner of the turbine
Providing highly polished blades to the runner
Installing the turbine below the tail race level
All of these

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Hydraulics and Fluid Mechanics in ME
Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

Internal
Both A and B
External
None of these

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

A triangle
A paraboloid
None of these
An ellipse

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump casing, the flow of water leaving the impeller, is

Rectilinear flow
Free vortex motion
Radial flow
Forced vortex

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