Refrigeration and Air Conditioning
In vapour compression cycle the condition of refrigerant is superheated vapour

After passing through the expansion or throttle valve
After passing through the condenser
Before passing through the condenser
Before entering the expansion valve

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Refrigeration and Air Conditioning
In a lithium bromide absorption refrigeration system

Ammonia is used as a refrigerant and lithium bromide as an absorbent
Lithium bromide is used as a refrigerant and water as an absorbent
None of these
Water is used as a refrigerant and lithium bromide as an absorbent

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