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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

Mouthpiece
Nozzle
Weir
Notch

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Hydraulics and Fluid Mechanics in ME
Which of the following pump is generally used to pump highly viscous fluid?

Reciprocating pump
Screw pump
Centrifugal pump
Air lift pump

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Hydraulics and Fluid Mechanics in ME
The discharge through an external mouthpiece is given by (where a = Cross-sectional area of the mouthpiece, and H = Height of liquid above the mouthpiece)

1.855 aH.√(2g)
1.585 a.√(2gH)
0.855 a.√(2gH)
5.85 aH.√(2g)

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

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

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Hydraulics and Fluid Mechanics in ME
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is

ω.r/4g
ω².r²/4g
ω.r/2g
ω².r²/2g

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Hydraulics and Fluid Mechanics in ME
The working of which of the following hydraulic units is based on Pascal's law?

Air lift pump
Jet pump
Hydraulic coupling
Hydraulic press

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