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 9: 1 1: 9 1: 1 1: 3 9: 1 1: 9 1: 1 1: 3 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The heat rejection factor (HRF) is given by 1 - C.O.P. 1 + (1/C.O.P) 1 - (1/C.O.P) 1 + C.O.P 1 - C.O.P. 1 + (1/C.O.P) 1 - (1/C.O.P) 1 + C.O.P ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For proper refrigeration in a cabinet, if the temperature and vapour pressure difference between cabinet and atmosphere is high, then Bigger cabinet should be used Smaller cabinet should be used Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used Bigger cabinet should be used Smaller cabinet should be used Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Bell Coleman cycle is a Reversed Carnot cycle Reversed Otto cycle Reversed Rankine cycle Reversed Joule cycle Reversed Carnot cycle Reversed Otto cycle Reversed Rankine cycle Reversed Joule cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The higher temperature in vapour compression cycle occurs at Expansion valve Receiver Compressor discharge Evaporator Expansion valve Receiver Compressor discharge Evaporator ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the wrong statement. A refrigerant should have High boiling point Higher critical temperature Tow specific heat of liquid High latent heat of vaporisation High boiling point Higher critical temperature Tow specific heat of liquid High latent heat of vaporisation ANSWER DOWNLOAD EXAMIANS APP
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