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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
The force of buoyancy is always __________ the weight of the liquid displaced by the body.

None of these
Less than
More than
Equal to

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Hydraulics and Fluid Mechanics in ME
Ratio of inertia force to elastic force is known as

Reynold’s number
Froude number
Mach number
Weber’s number

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Hydraulics and Fluid Mechanics in ME
The force per unit length is the unit of

Capillarity
Surface tension
Compressibility
Viscosity

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Hydraulics and Fluid Mechanics in ME
In a footstep bearing, if the radius of the shaft is doubled, then the torque required to overcome the viscous resistance will be

Double
Sixteen times
Four times
Eight times

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Hydraulics and Fluid Mechanics in ME
Working principle of dead weight pressure gauge tester is based on

Avogadro’s hypothesis
Pascal’s law
Dalton’s law of partial pressure
Newton’s law of viscosity

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

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

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