Refrigeration and Air Conditioning Environmental protection agencies advice against the use of chlorofluorocarbon refrigerants since These react with oxygen and cause its depletion These react with ozone layer These react with water vapour and cause acid rain These react with plants and cause greenhouse effect These react with oxygen and cause its depletion These react with ozone layer These react with water vapour and cause acid rain These react with plants and cause greenhouse effect ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called Low side float valve Thermostatic expansion valve High side float valve Automatic expansion valve Low side float valve Thermostatic expansion valve High side float valve Automatic expansion valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In air-conditioning of aeroplanes, using air as a refrigerant, the cycle used is Reversed Carnot cycle Reversed Joule cycle Reversed Otto cycle Reversed Brayton cycle Reversed Carnot cycle Reversed Joule cycle Reversed Otto cycle Reversed Brayton cycle ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condition of refrigerant as it leaves the compressor in a vapour compression system is Dry saturated vapour Wet vapour Saturated liquid Superheated vapour Dry saturated vapour Wet vapour Saturated liquid Superheated vapour ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a vapour compression system, the condition of refrigerant is dry saturated vapour Before entering the compressor After leaving the compressor After leaving the condenser Before entering the condenser Before entering the compressor After leaving the compressor After leaving the condenser Before entering the condenser ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A heat pump working on a reversed Carnot cycle has a C.O.P. of 5. It works as a refrigerator taking 1 kW of work input. The refrigerating effect will be 3 kW 1 kW 4 kW 2 kW 3 kW 1 kW 4 kW 2 kW ANSWER DOWNLOAD EXAMIANS APP
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