Refrigeration and Air Conditioning The value of C.O.P in vapour compression cycle is usually Always less than unity Always more than unity Equal to unity Any one of the above Always less than unity Always more than unity Equal to unity Any one of the above ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigeration system Requires little power consumption Cools below 0°C Gives quiet operation Gives noisy operation Requires little power consumption Cools below 0°C Gives quiet operation Gives noisy operation ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression refrigeration system, refrigerant occurs as liquid between Expansion valve and evaporator Compressor and evaporator Compressor and condenser Condenser and expansion valve Expansion valve and evaporator Compressor and evaporator Compressor and condenser Condenser and expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? R-12 Ammonia Carbon dioxide Sulphur dioxide R-12 Ammonia Carbon dioxide Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The operating pressure for refrigerating units using R-12 as a refrigerant is 30 bar 15 bar 2 bar 8 bar 30 bar 15 bar 2 bar 8 bar ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will May increase or decrease depending on the type of refrigerant used Increase Decrease Remain unaffected May increase or decrease depending on the type of refrigerant used Increase Decrease Remain unaffected ANSWER DOWNLOAD EXAMIANS APP
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