Use of hermetically sealed compressor in a vapour compression refriger

1.	Use of hermetically sealed compressor in a vapour compression refrigeration system results in:
A.	Decrease in energy consumption
B.	Increase in energy consumption
C.	Increase in COP
D.	Increase in pressure ratio
Answer» B. Increase in energy consumption

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Use of hermetically sealed compressor in a vapour compression refrigeration system results in:

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