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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

Nozzle
Notch
Weir
Mouthpiece

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Hydraulics and Fluid Mechanics in ME
The value of coefficient of discharge is __________ the value of coefficient of velocity.

Same as
None of these
More than
Less than

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Hydraulics and Fluid Mechanics in ME
A metal with specific gravity of 'a' floating in a fluid of same specific gravity 'a' will

Be fully immersed with top surface at fluid surface
Partly immersed
Sink to bottom
Float over fluid

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Hydraulics and Fluid Mechanics in ME
Medium specific speed of a pump implies it is

Axial flow pump
Centrifugal pump
Any one of the above
Mixed flow pump

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Hydraulics and Fluid Mechanics in ME
The Bernoulli's equation is based on the assumption that

All of these
There is no loss of energy of the liquid flowing
No force except gravity acts on the fluid
The velocity of flow is uniform across any cross-section of the pipe

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Hydraulics and Fluid Mechanics in ME
In a free nappe,

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

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