Refrigeration and Air Conditioning The unit of thermal diffusivity is m/h m/hK m²/hK m²/h m/h m/hK m²/hK m²/h ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning A valve which maintains a constant degree of superheat at the end of the evaporator coil, is called Thermostatic expansion valve Automatic expansion valve High side float valve Low side float valve Thermostatic expansion valve Automatic expansion valve High side float valve Low side float valve ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning When the lower temperature of a refrigerating machine is fixed, then the coefficient of performance can be improved by Operating the machine at higher speeds Raising the higher temperature Lowering the higher temperature Operating the machine at lower speeds Operating the machine at higher speeds Raising the higher temperature Lowering the higher temperature Operating the machine at lower speeds ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The mass of water vapour present in __________ is called absolute humidity. 1 m3 of dry air 1 m3 of water 1 kg of dry air 1 kg of wet air 1 m3 of dry air 1 m3 of water 1 kg of dry air 1 kg of wet air ANSWER DOWNLOAD EXAMIANS APP
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 More/less depending on rating Same More Less More/less depending on rating Same More Less ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning One of the purposes of sub cooling the liquid refrigerant is to Reduce compressor discharge temperature Ensure that only liquid and not the vapour enters the expansion (throttling) valve Increase cooling effect Reduce compressor overheating Reduce compressor discharge temperature Ensure that only liquid and not the vapour enters the expansion (throttling) valve Increase cooling effect Reduce compressor overheating ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS