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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

more
less
less at low temperature and more at high temperature
equal

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Hydraulics and Fluid Mechanics in ME
The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called

metacentre
upthrust
buoyancy
reaction

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Hydraulics and Fluid Mechanics in ME
Centrifugal pump is started with its delivery valve

Kept fully closed
Irrespective of any position
Kept 50% open
Kept fully open

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Hydraulics and Fluid Mechanics in ME
According to Bernoulli's equation

Z + p/w - v²/2g = constant
Z - p/w + v²/2g = constant
Z - p/w - v²/2g = constant
Z + p/w + v²/2g = constant

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Hydraulics and Fluid Mechanics in ME
The flow in which conditions do not change with time at any point, is known as

uniform flow
turbulent flow
steady flow
one dimensional flow

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Hydraulics and Fluid Mechanics in ME
Property of a fluid by which its own molecules are attracted is called

compressibility
cohesion
viscosity
adhesion

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