Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Ammonia Aqua-ammonia Water Freon Ammonia Aqua-ammonia Water Freon ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour pressure of refrigerant should be Lower than atmospheric pressure Equal to atmospheric pressure Higher than atmospheric pressure Could be anything Lower than atmospheric pressure Equal to atmospheric pressure Higher than atmospheric pressure Could be anything ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The humidification process, on the psychrometric chart is shown by Curved line Horizontal line Vertical line Inclined line Curved line Horizontal line Vertical line Inclined line ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Ammonia Sulphur dioxide R-12 Carbon dioxide Ammonia Sulphur dioxide R-12 Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lower horizontal line of the refrigeration cycle plotted on pressure-enthalpy diagram represents Condensation of the refrigerant vapour Evaporation of the refrigerant liquid Metering of the refrigerant liquid Compression of the refrigerant vapour Condensation of the refrigerant vapour Evaporation of the refrigerant liquid Metering of the refrigerant liquid Compression of the refrigerant vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The coefficient of performance (C.O.P.) of a refrigerator working as a heat pump is given by O.P.)R + 1 O.P.)P = ( ( ( O.P.)R + 2 O.P)P = ( ( O.P.)P = ( O.P)R - 1 O.P)P = ( ( O.P)R O.P.)R + 1 O.P.)P = ( ( ( O.P.)R + 2 O.P)P = ( ( O.P.)P = ( O.P)R - 1 O.P)P = ( ( O.P)R ANSWER DOWNLOAD EXAMIANS APP
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