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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The critical depth meter is used to measure

Hydraulic jump
Depth of flow in an open channel
Velocity of flow in an open channel
Depth of channel

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Hydraulics and Fluid Mechanics in ME
Differential manometer is used to measure

Atmospheric pressure
Pressure in pipes, channels etc.
Very low pressure
Difference of pressure between two points

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Hydraulics and Fluid Mechanics in ME
In an immersed body, centre of pressure is

At the centre of gravity
Below be centre of gravity
Could be above or below e.g. depending on density of body and liquid
Above the centre of gravity

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Hydraulics and Fluid Mechanics in ME
The length of a liquid stream while flowing over a weir __________ at the ends of the sill.

Expands
Contracts
None of these
Does not change

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Hydraulics and Fluid Mechanics in ME
The factional resistance of a pipe varies approximately with __________ of the liquid.

Velocity
Cube of velocity
Pressure
Square of velocity

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Hydraulics and Fluid Mechanics in ME
The dynamic viscosity of the liquid __________ with rise in temperature.

None of these
Decreases
Remain unaffected
Increases

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