Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Carbon dioxide Sulphur dioxide Lithium bromide R-12 Carbon dioxide Sulphur dioxide Lithium bromide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following statement is wrong? The value of C.O.P. is always greater than one In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour None of the listed here The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region The value of C.O.P. is always greater than one In a vapour compression system, the condition of refrigerant before entering the compressor is dry saturated vapour None of the listed here The space between the saturated liquid line and saturated vapour line, in a pressure enthalpy chart, is wet vapour region ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia is Non-toxic Toxic and non-inflammable Highly toxic and inflammable Non-inflammable Non-toxic Toxic and non-inflammable Highly toxic and inflammable Non-inflammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be Same More Less More/less depending on rating Same More Less More/less depending on rating ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During cooling and dehumidification, dry bulb temperature Decreases Increases Remains constant None of these Decreases Increases Remains constant None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Lower than atmospheric pressure Higher than atmospheric pressure Equal to atmospheric pressure Could be anything Lower than atmospheric pressure Higher than atmospheric pressure Equal to atmospheric pressure Could be anything ANSWER DOWNLOAD EXAMIANS APP
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