Refrigeration and Air Conditioning Freon group of refrigerants are Non-inflammable and toxic Inflammable Toxic Nontoxic and non-inflammable Non-inflammable and toxic Inflammable Toxic Nontoxic and non-inflammable ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The pressure at the outlet of a refrigerant compressor is called Discharge pressure Critical pressure Back pressure Suction pressure Discharge pressure Critical pressure Back pressure Suction pressure ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Nusselt number (NN) is given by NN = V²/t.cp NN = μ cp/k NN = hl/k NN = ρ V l /μ NN = V²/t.cp NN = μ cp/k NN = hl/k NN = ρ V l /μ ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Allowable pressure on high pressure side or ammonia absorption system is of the order of Slightly above atmospheric pressure Atmospheric pressure 24 bars 56 bars Slightly above atmospheric pressure Atmospheric pressure 24 bars 56 bars ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer. Same Higher Lower None of these Same Higher Lower None of these 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 9: 1 1: 9 1: 3 1: 1 9: 1 1: 9 1: 3 1: 1 ANSWER DOWNLOAD EXAMIANS APP
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