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GATE 20252025PYQNATanswer pendingexplanationeasy
Thermodynamics · Refrigeration
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Recurring concept
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Refrigeration has appeared in GATE Mechanical Engineering 12 times across 11 years (2014, 2015, 2017, 2022, 2025, ...).

∑ has math
heat pumpreversed carnot cycleCOPpower consumption