Refrigeration and Air Conditioning Critical temperature is the temperature above which Water will evaporate A gas will never liquefy A gas will immediately liquefy Water will never evaporate Water will evaporate A gas will never liquefy A gas will immediately liquefy Water will never evaporate ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a reversed Brayton cycle, the heat is absorbed by the air during Isentropic expansion process Constant pressure expansion process Constant pressure cooling process Isentropic compression process Isentropic expansion process Constant pressure expansion process Constant pressure cooling process Isentropic compression process 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 4.33 2.33 3.33 1.33 4.33 2.33 3.33 1.33 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Ammonia Carbon dioxide Sulphur dioxide R-12 Ammonia Carbon dioxide Sulphur dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerant with the highest critical pressure is Ammonia R-12 R-22 R-11 Ammonia R-12 R-22 R-11 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning For better C.O.P of refrigerator, the pressure range corresponding to temperature in evaporator and condenser must be High Equal Anything Small High Equal Anything Small ANSWER DOWNLOAD EXAMIANS APP
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