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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The coefficient of discharge for an external mouthpiece depends upon

Pressure of liquid
Velocity of liquid
Length of mouthpiece
Area of mouthpiece

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Hydraulics and Fluid Mechanics in ME
The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

4/RN
16/RN
1/RN
64/RN

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Compressibility of fluids
Steady/unsteady flow
Open channel/pipe flow
Conservation of mass

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Hydraulics and Fluid Mechanics in ME
If the surface of liquid is convex, men

There is no cohesion pressure
Cohesion pressure is decreased
Cohesion pressure is increased
Cohesion pressure is negligible

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Hydraulics and Fluid Mechanics in ME
In axial flow fans and turbines, fluid enters and leaves as follows

Radially, axially
Radially, radially
Axially, radially
Axially, axially

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Hydraulics and Fluid Mechanics in ME
Bulk modulus of a fluid __________ as the pressure increases.

None of these
Increases
Remain same
Decreases

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