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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

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

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

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

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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
According to equation of continuity,

a1/v1 = a2/v2
w1v1 = w2v2
a1v1 = a2v2
w1a1 = w2a2

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Hydraulics and Fluid Mechanics in ME
When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.

None of these
Concave
Convex
Plane

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Hydraulics and Fluid Mechanics in ME
In a Kaplan turbine runner, the numbers of blades are generally between

2 to 4
16 to 24
4 to 8
8 to 16

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