Refrigeration and Air Conditioning Cooling water is required for following equipment in ammonia absorption plant Evaporator Condenser Condenser, absorber and separator (rectifier) Absorber Evaporator Condenser Condenser, absorber and separator (rectifier) Absorber ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine with all other conditions unchanged, the coefficient of performance will be 3.33 4.33 1.33 2.33 3.33 4.33 1.33 2.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be Less More Same More/less depending on rating Less More Same More/less depending on rating ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a pressure enthalpy chart, the space to the left of the saturated liquid line represents None of the listed here Superheated vapour region Sub-cooled liquid region Wet vapour region None of the listed here Superheated vapour region Sub-cooled liquid region Wet vapour region 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 Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used Smaller cabinet should be used Bigger cabinet should be used Perfectly tight vapour seal should be used Refrigerant with lower evaporation temperature should be used Smaller cabinet should be used 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
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