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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

Product
None of these
Sum
Difference

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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.

None of these
Lies below
Lies above
Coincides with

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Hydraulics and Fluid Mechanics in ME
A flow whose streamline is represented by a curve, is called

Four-dimensional flow
Two-dimensional flow
Three-dimensional flow
One-dimensional flow

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Hydraulics and Fluid Mechanics in ME
Metacentric height for small values of angle of heel is the distance between the

free surface and centre of buoyancy
centre of buoyancy and metacentre
centre of gravity and metacentre
centre of gravity and centre of buoy-ancy

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Hydraulics and Fluid Mechanics in ME
In a centrifugal pump, the liquid enters the pump

At the canter
From sides
At the bottom
At the top

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Eight times
Four times
Double
Sixteen times

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