Refrigeration and Air Conditioning During a refrigeration cycle, heat is rejected by the refrigerant in a Evaporator Compressor Condenser Expansion valve Evaporator Compressor Condenser Expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Air conditioning means Dehumidifying All of these Cooling Heating Dehumidifying All of these Cooling Heating ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The cooling system used for supersonic aircrafts and rockets is Regenerative air cooling system Simple air cooling system Bootstrap air cooling system Reduced ambient air cooling system Regenerative air cooling system Simple air cooling system Bootstrap air cooling system Reduced ambient air cooling system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The central air conditioning system has ___________ overall efficiency as compared to individual systems. Lower Same Higher None of these Lower Same Higher None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used in small tonnage commercial machines (hermetically sealed units) is Carbon dioxide Sulphur dioxide Ammonia R-12 Carbon dioxide Sulphur dioxide Ammonia R-12 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 O.P)P = ( O.P.)R + 1 ( O.P)P = ( ( O.P.)P = ( ( O.P.)R + 2 ( O.P)R - 1 O.P.)P = ( O.P)R O.P)P = ( O.P.)R + 1 ( O.P)P = ( ( O.P.)P = ( ( O.P.)R + 2 ANSWER DOWNLOAD EXAMIANS APP
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