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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
To avoid an interruption in the flow of a syphon, an air vessel is provided

ay nay point between inlet and outlet
at the summit
at the outlet
at the inlet

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Hydraulics and Fluid Mechanics in ME
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)

4μvl/wd²
32μvl/wd²
8μvl/wd²
16μvl/wd²

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Hydraulics and Fluid Mechanics in ME
The magnitude of water hammer depends upon the

All of these
Elastic properties of the liquid flowing through the pipe
Elastic properties of the pipe material
Speed at which the valve is closed

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Hydraulics and Fluid Mechanics in ME
The pressure of air __________ with the increase of height from the surface of the earth.

Increases
None of these
Does not change
Decreases

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension will increase in size of tube will

May increase or decrease depending on the characteristics of liquid
Remain unaffected
Decrease
Increase

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Hydraulics and Fluid Mechanics in ME
The impeller of a centrifugal pump may have

Vortex casing
Volute casing with guide blades
Volute casing
Any one of these

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