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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to

21000
2100
10000
2700

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

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

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Hydraulics and Fluid Mechanics in ME
The body will float if the force of buoyancy is ___ the weight of the liquid displaced.

None of the listed here
Equal to
Less than
More than

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Hydraulics and Fluid Mechanics in ME
The velocity of jet of water travelling out of opening in a tank filled with water is proportional to

h2
head of water (h)
V/T
h2

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Hydraulics and Fluid Mechanics in ME
Practical fluids

possess surface tension
possess all the above properties
are compressible
are viscous

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Hydraulics and Fluid Mechanics in ME
Liquids transmit pressure equally in all the directions. This is according to

Archimedes principle
Pascal's law
Boyle's law
Newton's formula

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