Refrigeration and Air Conditioning The undesirable property of a refrigerant is High boiling point Non-explosive Non-toxic Non-flammable High boiling point Non-explosive Non-toxic Non-flammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice In 24 hours In 1 hour In 1 minute In 12 hours In 24 hours In 1 hour In 1 minute In 12 hours ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Bigger cabinet should be used Perfectly tight vapour seal should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Bigger cabinet should be used Perfectly tight vapour seal should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be Any value High, of the order of 25° Zero As low as possible (3 to 11°C) Any value High, of the order of 25° Zero As low as possible (3 to 11°C) ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In larger industrial and commercial reciprocating compression systems, refrigerant widely used is R-12 Sulphur dioxide Carbon dioxide Ammonia R-12 Sulphur dioxide Carbon dioxide Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia absorption refrigeration cycle requires Zero work input Nearly same work input as for vapour compression cycle Maximum work input Very little work input Zero work input Nearly same work input as for vapour compression cycle Maximum work input Very little work input ANSWER DOWNLOAD EXAMIANS APP
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