Fluid Mechanics
Which of the following is not a dimension-less parameter?

Fanning friction factor
Specific gravity
None of these
Euler number

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Fluid Mechanics
Steady flow occurs, when the

Conditions are the same at the adjacent points at any instant
Conditions do not change with time at any point
Conditions change steadily with time
Rate of the velocity change is constant

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Fluid Mechanics
Turbine impeller

Produces only tangential current
Is effective over wide range of viscosities
Does not produce tangential current
Produces only radial current

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