Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Sulphur dioxide Ammonia R-12 Carbon dioxide Sulphur dioxide Ammonia R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The emissivity of a polished silver body is ____ as compared to black body. High Same Very low Low High Same Very low Low ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant has the lowest freezing point? R-11 R-22 Ammonia R-12 R-11 R-22 Ammonia R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In Electrolux refrigerator Hydrogen evaporates in ammonia Ammonia evaporates in hydrogen Ammonia is absorbed in hydrogen Ammonia is absorbed in water Hydrogen evaporates in ammonia Ammonia evaporates in hydrogen Ammonia is absorbed in hydrogen Ammonia is absorbed in water 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 Zero As low as possible (3 to 11°C) High, of the order of 25° Any value Zero As low as possible (3 to 11°C) High, of the order of 25° ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Accumulators should have adequate volume to store refrigerant charge at least 0.1 0.5 0.25 0.75 0.1 0.5 0.25 0.75 ANSWER DOWNLOAD EXAMIANS APP
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