Fluid Mechanics
Interstage coolers are provided in a multistage compressor to

Save power in compressing a given volume to a given pressure
None of these
Achieve the exact delivery pressure
Cool the delivered air

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Fluid Mechanics
Steady flow occurs, when the

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

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