Refrigeration and Air Conditioning Which of the following statement is correct for ammonia as a refrigerant? It is toxic to mucous membranes. All of these It requires large displacement per TR compared to fluoro carbons. It reacts with copper and its alloys. It is toxic to mucous membranes. All of these It requires large displacement per TR compared to fluoro carbons. It reacts with copper and its alloys. ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a refrigeration system, the expansion device is connected between the Receiver and evaporator Evaporator and compressor Compressor and condenser Condenser and receiver Receiver and evaporator Evaporator and compressor Compressor and condenser Condenser and receiver ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The Freon group of refrigerants are Inorganic refrigerants Zoetrope refrigerants Hydrocarbon refrigerants Halocarbon refrigerants Inorganic refrigerants Zoetrope refrigerants Hydrocarbon refrigerants Halocarbon refrigerants ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In refrigerators, the temperature difference between the evaporating refrigerant and the medium being cooled should be As low as possible (3 to 11°C) High, of the order of 25° Zero Any value As low as possible (3 to 11°C) High, of the order of 25° Zero Any value ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The central air conditioning system has ___________ overall efficiency as compared to individual systems. Lower Same Higher None of these Lower Same Higher None of these ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, Will be higher Will remain unaffected May be higher or lower depending upon the nature of non-condensable gases Will be lower Will be higher Will remain unaffected May be higher or lower depending upon the nature of non-condensable gases Will be lower ANSWER DOWNLOAD EXAMIANS APP
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