Refrigeration and Air Conditioning For evaporators and condensers, for the given conditions, the logarithmic mean temperature difference (tm) for parallel flow is ________ that for counter flow. None of these Greater than Less than Equal to None of these Greater than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton refrigeration corresponds to 50 kcal/ hr 80 kcal/ hr 50 kcal/ min 80 kcal/ min 50 kcal/ hr 80 kcal/ hr 50 kcal/ min 80 kcal/ min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In S.J. unit, one ton of refrigeration is equal to 420 kJ/ min 21 kJ/ min 840 kJ/ min 210 kJ/ min 420 kJ/ min 21 kJ/ min 840 kJ/ min 210 kJ/ min ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Aqua ammonia is used as refrigerant in the following type of refrigeration system Direct Compression Indirect Absorption Direct Compression Indirect Absorption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 9: 1 1: 1 1: 9 1: 3 9: 1 1: 1 1: 9 1: 3 ANSWER DOWNLOAD EXAMIANS APP
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