Refrigeration and Air Conditioning The alignment circle is marked on the psychrometric chart at 26°C DBT and 50% RH 20°C DBT and 50% RH 26°C DBT and 60% RH 20°C DBT and 60% RH 26°C DBT and 50% RH 20°C DBT and 50% RH 26°C DBT and 60% RH 20°C DBT and 60% RH ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a spray washing system, if the temperature of water is higher than the dry bulb temperature of entering air, then the air is Cooled and humidified Cooled and dehumidified Heated and humidified Heated and dehumidified Cooled and humidified Cooled and dehumidified Heated and humidified Heated and dehumidified 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 The formation of frost on cooling coils in a refrigerator Increases power consumption Increases heat transfer Improves C.O.P. of the system Reduces power consumption Increases power consumption Increases heat transfer Improves C.O.P. of the system Reduces power consumption ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerant compressor is used to Raise the temperature of the refrigerant All of these Circulate the refrigerant through the refrigerating system Raise the pressure of the refrigerant Raise the temperature of the refrigerant All of these Circulate the refrigerant through the refrigerating system Raise the pressure of the refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Ammonia absorption refrigeration cycle requires Maximum work input Zero work input Very little work input Nearly same work input as for vapour compression cycle Maximum work input Zero work input Very little work input Nearly same work input as for vapour compression cycle ANSWER DOWNLOAD EXAMIANS APP
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