Refrigeration and Air Conditioning Critical pressure of a liquid is the pressure Above which liquid will remain liquid Above which liquid becomes gas Above which liquid becomes vapour Above which liquid becomes solid Above which liquid will remain liquid Above which liquid becomes gas Above which liquid becomes vapour Above which liquid becomes solid ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A standard ice point temperature corresponds to the temperature of Water at 0°C Solid and dry ice Ice at 4°C Mixture of ice and water under equilibrium conditions Water at 0°C Solid and dry ice Ice at 4°C Mixture of ice and water under equilibrium conditions ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A one tonne refrigerating machine means that 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 One tonne refrigerant is used ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Short horizontal lines on pressure-enthalpy chart show Constant pressure lines Constant temperature lines Constant entropy lines Constant total heat lines Constant pressure lines Constant temperature lines Constant entropy lines Constant total heat lines ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A refrigerating system operating on reversed Brayton refrigeration cycle is used for maintaining 250 K. If the temperature at the end of constant pressure cooling is 300 K and rise in the temperature of air in the refrigerator is 50 K, then the net work of compression will be (assume air as working substance with Cp = 1 kJ/kg) 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Pick up the correct statement about giving up of heat from one medium to other in ammonia absorption system Strong solution to ammonia vapour Strong solution to weak solution Weak solution to strong solution Ammonia vapours to weak solution Strong solution to ammonia vapour Strong solution to weak solution Weak solution to strong solution Ammonia vapours to weak solution ANSWER DOWNLOAD EXAMIANS APP
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