Refrigeration and Air Conditioning A vapour absorption refrigeration system Gives quiet operation Gives noisy operation Requires little power consumption Cools below 0°C Gives quiet operation Gives noisy operation Requires little power consumption Cools below 0°C ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant supplied to a compressor must be Dry saturated liquid refrigerant None of these A mixture of liquid and vapour refrigerant Superheated vapour refrigerant Dry saturated liquid refrigerant None of these A mixture of liquid and vapour refrigerant Superheated vapour refrigerant ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant temperature lines Constant entropy lines Constant pressure lines Constant total heat lines Constant temperature lines Constant entropy lines Constant pressure lines Constant total heat lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant used for absorption refrigerators working on heat from solar collectors is a mixture of water and Lithium bromide Carbon dioxide Sulphur dioxide R-12 Lithium bromide Carbon dioxide Sulphur dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning On the pressure-enthalpy diagram, condensation and desuperheating is represented by a horizontal line because the process Involves no change in volume Takes place at constant pressure Takes place at constant entropy Takes place at constant temperature Involves no change in volume Takes place at constant pressure Takes place at constant entropy Takes place at constant temperature ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A one tonne refrigerating machine means that One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne of water can be converted into ice One tonne is the total mass of machine One tonne refrigerant is used One tonne of ice when melts from and at 0° C in 24 hours, the refrigeration effect is equivalent to 210 kJ/min One tonne of water can be converted into ice One tonne is the total mass of machine ANSWER DOWNLOAD EXAMIANS APP
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