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 2 kW 3 kW 4 kW 1 kW 2 kW 3 kW 4 kW 1 kW ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The optimum effective temperature for human comfort is Not dependent on season Lower in winter than in summer Higher in winter than in summer Same in winter and summer Not dependent on season Lower in winter than in summer Higher in winter than in summer Same in winter and summer ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Under cooling in a refrigeration cycle Other factors decide C.O.P O.P remains unaltered Decreases C.O.P Increases C.O.P Other factors decide C.O.P O.P remains unaltered Decreases C.O.P Increases C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Ammonia Freon Water Aqua-ammonia Ammonia Freon Water Aqua-ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The lowest temperature during the cycle in a vapour compression system occurs after Expansion Evaporation Condensation Compression Expansion Evaporation Condensation Compression ANSWER DOWNLOAD EXAMIANS APP