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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The depth of the bucket for a Pelton wheel is generally _________ the diameter of jet.

Equal to
1.2 times
Double
1.8 times

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

upthrust
buoyancy
metacentre
reaction

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Hydraulics and Fluid Mechanics in ME
The rise of liquid along the walls of a revolving cylinder about the initial level is _________ the depression of the liquid at the axis of rotation.

More than
None of these
Same as
Less than

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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.

Decreases
Does not change
Increases
None of these

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Hydraulics and Fluid Mechanics in ME
The speed of sound in a ideal gas varies directly as its

density
temperature
modulus of elasticity
absolute temperature

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Hydraulics and Fluid Mechanics in ME
In a depressed nappe

The pressure below the nappe is negative
The pressure above the nappe is atmospheric
The pressure below the nappe is atmospheric
The pressure above the nappe is negative

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