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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
If the coefficient of discharge is 0.6, then the discharge over a right angled notch is

4.171 H5/2
0.417 H5/2
7.141 H5/2
1.417 H5/2

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Hydraulics and Fluid Mechanics in ME
The discharge through a reaction turbine with increase in unit speed

Decreases
First increases and then decreases
Increases
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
The velocity at which the laminar flow stops, is known as

Higher critical velocity
None of these
Velocity of approach
Lower critical velocity

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Hydraulics and Fluid Mechanics in ME
The hydraulic mean depth or the hydraulic radius is the ratio of

Wetted perimeter and diameter of pipe
None of these
Velocity of flow and area of flow
Area of flow and wetted perimeter

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Hydraulics and Fluid Mechanics in ME
The centre of pressure acts __________ the centre of gravity of immersed surface.

At
Below
None of these
Above

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Hydraulics and Fluid Mechanics in ME
Froude's number is the ratio of inertia force to

Elastic force
Surface tension force
Pressure force
Gravity force

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