Refrigeration and Air Conditioning In a lithium bromide absorption refrigeration system None of these Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent Lithium bromide is used as a refrigerant and water as an absorbent None of these Ammonia is used as a refrigerant and lithium bromide as an absorbent Water is used as a refrigerant and lithium bromide as an absorbent Lithium bromide is used as a refrigerant and water as an absorbent ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerants has lowest freezing point? CO2 NH3 Freon-22 Freon-12 CO2 NH3 Freon-22 Freon-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air refrigeration cycle is used in Domestic refrigerators Commercial refrigerators Air conditioning Gas liquefaction Domestic refrigerators Commercial refrigerators Air conditioning Gas liquefaction ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If a gas is to be liquefied, its temperature must be None of these Reduced to a value below its critical temperature Increased to a value above its critical temperature Equal to critical temperature None of these Reduced to a value below its critical temperature Increased to a value above its critical temperature Equal to critical temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Operating the machine at lower speeds Operating the machine at higher speeds Raising the higher temperature Lowering the higher temperature Operating the machine at lower speeds Operating the machine at higher speeds Raising the higher temperature Lowering the higher temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The specific humidity during heating and humidification process. Remains constant None of these Decreases Increases Remains constant None of these Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
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