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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

Weir
Nozzle
Notch
Mouthpiece

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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/2g
ω².r²/4g
ω.r/4g
ω².r²/2g

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Hydraulics and Fluid Mechanics in ME
The vapour pressure over the concave surface is

greater than the vapour pressure over the plane surface
equal to the vapour pressure over the plane surface
zero
less man the vapour pressure over the plane surface

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Hydraulics and Fluid Mechanics in ME
An internal mouthpiece is said to be running free if the length of the mouthpiece is __________ the diameter of the orifice.

Less than twice
More than three times
Less than three times
More than twice

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Hydraulics and Fluid Mechanics in ME
Which of the following hydraulic unit is used for transmitting increased or decreased torque to the driven shaft?

Hydraulic torque converter
Hydraulic intensifier
Hydraulic ram
Hydraulic accumulator

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Hydraulics and Fluid Mechanics in ME
The two important forces for a floating body are

buoyancy, inertial
inertial, gravity
buoyancy, gravity
buoyancy, pressure

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