Refrigeration and Air Conditioning On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Takes place at constant temperature Takes place at constant entropy Takes place at constant pressure Involves no change in volume Takes place at constant temperature Takes place at constant entropy Takes place at constant pressure Involves no change in volume ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A certain refrigerating system has a normal operating suction pressure of 10 kg/cm gauge and condensing pressure of about 67 kg/cm. The refrigerant used is Carbon dioxide Brine Freon Ammonia Carbon dioxide Brine Freon Ammonia ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerant with the highest critical pressure is R-12 R-11 Ammonia R-22 R-12 R-11 Ammonia R-22 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a flooded evaporator refrigerator, an accumulator at suction of compressor is used to Detect liquid in vapour Superheat the vapour Collect liquid refrigerant and prevent it from going to compressor Collect vapours Detect liquid in vapour Superheat the vapour Collect liquid refrigerant and prevent it from going to compressor Collect vapours ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called Degree of saturation Humidity ratio Relative humidity Absolute humidity Degree of saturation Humidity ratio Relative humidity Absolute humidity ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Moisture in Freon refrigeration system causes High power consumption Freezing automatic regulating valve Ineffective refrigeration Corrosion of whole system High power consumption Freezing automatic regulating valve Ineffective refrigeration Corrosion of whole system ANSWER DOWNLOAD EXAMIANS APP
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