Refrigeration and Air Conditioning The emissivity of a polished silver body is ____ as compared to black body. Same High Very low Low Same High Very low Low ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? NH3 Freon-22 Freon-12 CO2 NH3 Freon-22 Freon-12 CO2 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance of Heat Pump is always ___ one. Less than Equal to None of the listed here Greater than Less than Equal to None of the listed here Greater than 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 Bigger cabinet should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Perfectly tight vapour seal should be used Bigger cabinet should be used Smaller cabinet should be used Refrigerant with lower evaporation temperature should be used Perfectly tight vapour seal should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air refrigeration cycle is used in Commercial refrigerators Gas liquefaction Domestic refrigerators Air conditioning Commercial refrigerators Gas liquefaction Domestic refrigerators Air conditioning ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The boiling point of ammonia is -33.3°C -77.7°C -30°C -10.5°C -33.3°C -77.7°C -30°C -10.5°C ANSWER DOWNLOAD EXAMIANS APP
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