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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A flow in which __________ force is dominating over the viscosity is called turbulent flow.

Inertia
Surface tension
Elastic
Viscous

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Hydraulics and Fluid Mechanics in ME
In a depressed nappe

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

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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

None of these
Weir
Orifice
Notch

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Hydraulics and Fluid Mechanics in ME
Size of a venturimeter is specified by

both pipe diameter as well as throat diameter
throat diameter
pipe diameter
angle of diverging section

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Hydraulics and Fluid Mechanics in ME
The ratio of quantity of liquid discharged per second from the pump to the quantity of liquid passing per second through the impeller is known as

Volumetric efficiency
Overall efficiency
Manometric efficiency
Mechanical efficiency

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Hydraulics and Fluid Mechanics in ME
Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?

Pelton wheel
Francis turbine
Kaplan turbine
None of these

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