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.)P = ( ( O.P.)R + 2 O.P)P = ( O.P)R O.P)R - 1 ( ( ( O.P.)P = ( O.P.)R + 1 O.P)P = ( O.P.)P = ( ( O.P.)R + 2 O.P)P = ( O.P)R O.P)R - 1 ( ( ( O.P.)P = ( ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning During cooling and dehumidification, dry bulb temperature Increases None of these Decreases Remains constant Increases None of these Decreases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Mass flow ratio of NH₃ in comparison to Freon-12 for same refrigeration load and same temperature limits is of the order of 1: 1 1: 9 1: 3 9: 1 1: 1 1: 9 1: 3 9: 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lowest temperature during the cycle in a vapour compression system occurs after Evaporation Compression Expansion Condensation Evaporation Compression Expansion Condensation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The human body feels comfortable when the heat stored in the body is Zero Negative Positive None of these Zero Negative Positive None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture should be removed from refrigerants to avoid Freezing at the expansion valve Restriction to refrigerant flow Corrosion of steel plates All of these Freezing at the expansion valve Restriction to refrigerant flow Corrosion of steel plates All of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS