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Two-stage reciprocating air compressor: work per cycle composition Consider a two-stage reciprocating air compressor. The total work done per cycle equals what combination of stage works? Choose the correct statement.

Difficulty: Easy

Equal to work in L.P. cylinder only
Equal to work in H.P. cylinder only
Equal to the sum of works in L.P. and H.P. cylinders
Independent of stage works

Correct Answer: Equal to the sum of works in L.P. and H.P. cylinders

Explanation:

Concept/ApproachEach cycle comprises compression (and associated processes) in the low-pressure (L.P.) stage plus in the high-pressure (H.P.) stage. The indicated work per cycle is the sum of the indicated works of both stages, accounting for intercooling and valve actions.

Final AnswerEqual to the sum of works in L.P. and H.P. cylinders

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Two-stage reciprocating air compressor: work per cycle composition Consider a two-stage reciprocating air compressor. The total work done per cycle equals what combination of stage works? Choose the correct statement.

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