Compressors, Gas Turbines and Jet Engines
In a single stage, single acting reciprocating air compressor, without clearance, the work-done on the air during isentropic compression is ________ the heat required to raise the temperature of air from T₁ to T₂ at a constant pressure.

Equal to
Greater than
None of these
Less than

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Compressors, Gas Turbines and Jet Engines
Inter-cooling in gas turbine results in

Increase in both thermal efficiency and net output
Decrease in both thermal efficiency and net output
Increase in thermal efficiency but decrease in net output
Increase in net output but decrease in thermal efficiency

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