General Studies · Refrigeration and Air Conditioning
Which of the following is NOT a function of lubricating oils used in refrigeration systems?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Sealing the gas between the suction and discharge ports
- 2Minimizing friction between moving parts
- 3Transferring heat from the crankcase to the compressor shell/surroundings
- 4Decreasing the coolant temperature and hence increasing the COP✓
Correct answer
Decreasing the coolant temperature and hence increasing the COP
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