Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Same in winter and summer Higher in winter than in summer Not dependent on season Lower in winter than in summer Same in winter and summer Higher in winter than in summer Not dependent on season Lower in winter than in summer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration system, heat absorbed in comparison to heat rejected is Less Same More More for small capacity and less for high capacity Less Same More More for small capacity and less for high capacity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The evaporator used in household refrigerators is Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator Defrosting evaporator Frosting evaporator None of these Non-frosting evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating pressure for refrigerating units using R-12 as a refrigerant is 15 bar 30 bar 8 bar 2 bar 15 bar 30 bar 8 bar 2 bar 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.)P = ( O.P)R - 1 ( ( O.P)R ( O.P)P = ( O.P.)P = ( ( O.P)P = ( O.P.)R + 2 O.P.)R + 1 O.P.)P = ( O.P)R - 1 ( ( O.P)R ( O.P)P = ( O.P.)P = ( ( O.P)P = ( O.P.)R + 2 O.P.)R + 1 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be 4 kW 1 kW 2 kW 3 kW 4 kW 1 kW 2 kW 3 kW ANSWER DOWNLOAD EXAMIANS APP
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