Refrigeration and Air Conditioning In aqua ammonia and Lithium bromide water absorption refrigeration systems, the refrigerants are respectively Water and lithium bromide Ammonia and water Ammonia and lithium bromide Water and water Water and lithium bromide Ammonia and water Ammonia and lithium bromide Water and water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton refrigeration corresponds to 50 kcal/ min 50 kcal/ hr 80 kcal/ hr 80 kcal/ min 50 kcal/ min 50 kcal/ hr 80 kcal/ hr 80 kcal/ min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The formation of frost on cooling coils in a refrigerator Improves C.O.P. of the system Increases power consumption Increases heat transfer Reduces power consumption Improves C.O.P. of the system Increases power consumption Increases heat transfer Reduces power consumption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Carbon dioxide R-12 Lithium bromide Sulphur dioxide Carbon dioxide R-12 Lithium bromide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The sub-cooling in a refrigeration cycle Decreases C.O.P. Increases C.O.P. None of these Does not alter C.O.P. Decreases C.O.P. Increases C.O.P. None of these Does not alter C.O.P. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator changes the low pressure liquid refrigerant from the expansion valve into High pressure liquid refrigerant None of these Low pressure liquid and vapour refrigerant Low pressure vapour refrigerant High pressure liquid refrigerant None of these Low pressure liquid and vapour refrigerant Low pressure vapour refrigerant ANSWER DOWNLOAD EXAMIANS APP
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