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Hydraulics and Fluid Mechanics in ME

Hydraulics and Fluid Mechanics in ME
For small discharge at high pressure, following pump is preferred

Centrifugal
Mixed flow
Reciprocating
Axial flow

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Hydraulics and Fluid Mechanics in ME
The ratio of the inertia force to the __________ is called Euler's number.

Surface tension force
Elastic force
Viscous force
Pressure force

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

Sixteen times
Eight times
Four times
Double

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Hydraulics and Fluid Mechanics in ME
The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

None of these
Remain same
Decreases
Increases

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Hydraulics and Fluid Mechanics in ME
The continuity equation is connected with

Conservation of mass
Open channel/pipe flow
Steady/unsteady flow
Compressibility of fluids

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Hydraulics and Fluid Mechanics in ME
An ideal flow of any fluid must satisfy

continuity equation
Pascal law
Newton’s law of viscosity
boundary layer theory

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