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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
Dimensions of surface tension are

ML°T
ML r²
ML°T⁻²
ML²T²

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Hydraulics and Fluid Mechanics in ME
The rise or depression of liquid in a tube due to surface tension wim increase in size of tube will

decrease
remain unaffected
may increase or decrease depending on the characteristics of liquid
increase

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Hydraulics and Fluid Mechanics in ME
Air vessels in reciprocating pump are used to

Smoothen flow
Increase pump efficiency
Save pump from cavitations
Reduce acceleration to minimum

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Hydraulics and Fluid Mechanics in ME
The centre of gravity of the volume of the liquid displaced is called

None of the listed here
Centre of pressure
Centre of buoyancy
Metacentre

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Hydraulics and Fluid Mechanics in ME
A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is

7
5
1
6

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Hydraulics and Fluid Mechanics in ME
Metacentre is the point of intersection of

All of these
mid point between e.g. and center of buoyancy
buoyant force and the center line of body
vertical upward force through e.g. of body and center line of body

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