Refrigeration and Air Conditioning If the evaporator temperature of a plant is lowered, keeping the condenser temperature constant, the h.p. of compressor required will be Same More/less depending on rating Less More Same More/less depending on rating Less More ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a psychrometric process, the sensible heat added is 30 kJ/s and the latent heat added is 20 kJ/s. The sensible heat factor for the process will be 0.6 0.3 1.5 0.67 0.6 0.3 1.5 0.67 ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The C.O.P. of a refrigeration cycle with lowering of condenser temperature, keeping the evaporator temperature constant, will Remain unaffected Increase Decrease May increase or decrease depending on the type of refrigerant used Remain unaffected Increase Decrease May increase or decrease depending on the type of refrigerant used 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) 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg 125 kJ/kg 50 kJ/kg 100 kJ/kg 25 kJ/kg ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The vapour compression refrigerator employs the following cycle Reversed Carnot Rankine Carnot Reversed Rankine Reversed Carnot Rankine Carnot Reversed Rankine ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Which of the following refrigerant is highly toxic and flammable? Ammonia Sulphur dioxide Carbon dioxide R-12 Ammonia Sulphur dioxide Carbon dioxide R-12 ANSWER DOWNLOAD EXAMIANS APP
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