Refrigeration and Air Conditioning A refrigerant with the highest critical pressure is R-12 R-11 Ammonia R-22 R-12 R-11 Ammonia R-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning R-12 is generally preferred over R-22 in deep freezers since It is miscible with oil over large range of temperatures All of these It has low operating pressures It gives higher coefficient of performance It is miscible with oil over large range of temperatures All of these It has low operating pressures It gives higher coefficient of performance ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Strong solution to weak solution Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution Strong solution to weak solution Strong solution to ammonia vapour Ammonia vapours to weak solution Weak solution to strong solution 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 1: 9 1: 1 1: 3 9: 1 1: 9 1: 1 1: 3 9: 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Most air cooled condensers are designed to operate with a temperature difference of 14°C 5°C 22°C 8°C 14°C 5°C 22°C 8°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Chaperon equation is applicable for registration at Sublimation temperature Triple point Saturation point of vapour Saturation point of liquid Sublimation temperature Triple point Saturation point of vapour Saturation point of liquid ANSWER DOWNLOAD EXAMIANS APP
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