Refrigeration and Air Conditioning Which of the following refrigerant has the highest freezing point. Sulphur dioxide Carbon dioxide R-12 Ammonia Sulphur dioxide Carbon dioxide R-12 Ammonia 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 lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds Operating the machine at lower speeds Lowering the higher temperature Raising the higher temperature Operating the machine at higher speeds ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The cooling system used for supersonic aircrafts and rockets is Regenerative air cooling system Reduced ambient air cooling system Bootstrap air cooling system Simple air cooling system Regenerative air cooling system Reduced ambient air cooling system Bootstrap air cooling system Simple air cooling system ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The humidification process, on the psychrometric chart is shown by Horizontal line Curved line Inclined line Vertical line Horizontal line Curved line Inclined line Vertical line ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning Where does the lowest temperature occur in a vapour compression cycle? Evaporator Condenser Expansion valve Compressor Evaporator Condenser Expansion valve Compressor ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The minimum temperature to which water can be cooled in a cooling tower is Dry bulb temperature of air Dew point temperature of air Ambient air temperature Wet bulb temperature of air Dry bulb temperature of air Dew point temperature of air Ambient air temperature Wet bulb temperature of air ANSWER DOWNLOAD EXAMIANS APP
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