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Hydraulics and Fluid Mechanics in ME

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
Liquids

Occupy definite volume
Are not affected by change in pressure and temperature
None of the listed here
Cannot be compressed

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

Decrease
May increase or decrease depending on the characteristics of liquid
Increase
Remain unaffected

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Hydraulics and Fluid Mechanics in ME
The property by virtue of which a liquid opposes relative motion between its different layers is called

Surface tension
Viscosity
Osmosis
Coefficient of viscosity

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Hydraulics and Fluid Mechanics in ME
The sheet of water flowing over a notch or a weir is known as

Nappe or vein
None of these
Sill or crest
Orifice

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Hydraulics and Fluid Mechanics in ME
A fluid having no viscosity is known as

Ideal fluid
Newtonian fluid
Non-Newtonian fluid
Real fluid

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