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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
All the terms of energy in Bernoulli’s equation have dimension of

mass
energy
length
work

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

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

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Hydraulics and Fluid Mechanics in ME
The increase of temperature results in

decrease in viscosity of gas
decrease in viscosity of liquid
increase in viscosity of gas
increase in viscosity of liquid

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Hydraulics and Fluid Mechanics in ME
In reaction turbine, draft tube is used

To increase flow rate
To transport water downstream without eddies
For safety of turbine
To convert the kinetic energy to flow energy by a gradual expansion of the flow cross-section

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Hydraulics and Fluid Mechanics in ME
The angle of contact in case of a liquid depends upon

the nature of the liquid and the solid
both of die above
the material which exists above the free surface of the liquid
any one of the above

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Hydraulics and Fluid Mechanics in ME
A point, in a compressible flow where the velocity of fluid is zero, is called

None of the listed here
Critical point
Vena contracta
Stagnation point

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