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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
An opening in the side of a tank or vessel such that the liquid surface with the tank is below the top edge of the opening, is called

Orifice
Notch
Weir
None of these

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Hydraulics and Fluid Mechanics in ME
If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

50 cm
52 cm
52.2 cm
51 cm

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Hydraulics and Fluid Mechanics in ME
A double overhung Pelton wheel has

Two runners
Two jets
Four runners
Four jets

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Hydraulics and Fluid Mechanics in ME
In a free nappe,

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

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the viscous force is called

Euler's number
Froude's number
Reynold's number
Weber's number

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Hydraulics and Fluid Mechanics in ME
Capillary action is due to the

Cohesion of the liquid
All of the listed here
Adhesion of the liquid molecules and the molecules on the surface of a solid
Surface tension

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