Refrigeration and Air Conditioning The domestic refrigerator uses following type of compressor Piston type reciprocating Centrifugal Axial Miniature sealed unit Piston type reciprocating Centrifugal Axial Miniature sealed unit ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Ammonia Sulphur dioxide Carbon dioxide R-12 Ammonia Sulphur dioxide Carbon dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be High, of the order of 25° As low as possible (3 to 11°C) Any value Zero High, of the order of 25° As low as possible (3 to 11°C) Any value Zero 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 12 hours In 24 hours In 1 hour In 1 minute In 12 hours In 24 hours In 1 hour In 1 minute ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The temperature of ammonia after compression in a vapour compression system is 50 to 70°C 20 to 50°C 70 to 110°C None of these 50 to 70°C 20 to 50°C 70 to 110°C None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Absorption system normally uses the following refrigerant Ammonia Freon-22 Freon-11 CO2 Ammonia Freon-22 Freon-11 CO2 ANSWER DOWNLOAD EXAMIANS APP
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