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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
When a piping system is made up primarily of vertical lift and very little pipe friction, the pump characteristics should be

First rise and then fall
Horizontal
Nearly horizontal
Steep

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Hydraulics and Fluid Mechanics in ME
The motion of air mass in a tornado is a

forced vortex motion
free vortex motion
free vortex at center and forced vortex outside
forced vortex at center and free vortex outside

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

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

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Hydraulics and Fluid Mechanics in ME
In case of an airfoil, the separation of flow occurs

midway between rear and front of body
any where between rear and front of body depending upon Reynolds number
at the extreme rear of body
at the extreme front of body

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Hydraulics and Fluid Mechanics in ME
A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

Lies above
Coincides with
Lies below
None of these

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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
Weir
Nozzle
Mouthpiece

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