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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

Notch
Nozzle
Weir
Mouthpiece

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Hydraulics and Fluid Mechanics in ME
In series-pipe problems

the discharge is same through each pipe
the head loss is same through each pipe
the discharge through each pipe is added to obtain total discharge
a trial solution is not necessary

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Hydraulics and Fluid Mechanics in ME
A body floats in stable equilibrium

When its e.g. is below its center of buoyancy
When its meatcentric height is zero
Metacentre has nothing to do with position of e.g. for determining stability
When the metacentre is above e.g.

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Hydraulics and Fluid Mechanics in ME
The center of pressure of a surface subjected to fluid pressure is the point

similar to metacentre
at which all hydraulic forces meet
on the surface at which resultant pres-sure acts
on the surface at which gravitational force acis

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Hydraulics and Fluid Mechanics in ME
A hydraulic intensifier normally consists of

Two coaxial rams and two cylinders
A cylinder and a ram
A cylinder, a piston, storage tank and control valve
Two cylinders, two rams and a storage device

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Hydraulics and Fluid Mechanics in ME
The liquid used in manometers should have

Low density
High density
High surface tension
Low surface tension

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