Refrigeration and Air Conditioning The freezing point of sulphur dioxide is -135.8°C -77.7°C -75.2°C -56.6°C -135.8°C -77.7°C -75.2°C -56.6°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One ton of refrigeration is equal to the refrigeration effect corresponding to melting of 1000 kg of ice In 1 hour In 24 hours In 1 minute In 12 hours In 1 hour In 24 hours In 1 minute In 12 hours ANSWER DOWNLOAD EXAMIANS APP
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 Vertical lines on pressure-enthalpy chart show constant Total heat lines Temperature lines Entropy lines Pressure lines Total heat lines Temperature lines Entropy lines Pressure lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A vapour absorption refrigerator uses _________ as a refrigerant. Aqua-ammonia Ammonia Freon Water Aqua-ammonia Ammonia Freon Water ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The wet bulb temperature during sensible heating of air Increases Decreases None of these Remains constant Increases Decreases None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
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