Refrigeration and Air Conditioning Which of the following refrigerant has the maximum ozone depletion potential in the stratosphere? Carbon dioxide Fluorine Ammonia Sulphur dioxide Carbon dioxide Fluorine Ammonia Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In a pressure enthalpy chart, the space to the left of the saturated liquid line represents Wet vapour region None of the listed here Sub-cooled liquid region Superheated vapour region Wet vapour region None of the listed here Sub-cooled liquid region Superheated vapour region ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning In vapour compression cycle the condition of refrigerant is superheated vapour Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser Before entering the expansion valve Before passing through the condenser After passing through the expansion or throttle valve After passing through the condenser Before entering the expansion valve 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 temperature Takes place at constant pressure Takes place at constant entropy Involves no change in volume Takes place at constant temperature Takes place at constant pressure Takes place at constant entropy ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The refrigerant after condensation process is cooled below the saturation temperature before throttling. Such a process is called Super-cooling Sub-cooling or under-cooling Normal cooling None of the listed here Super-cooling Sub-cooling or under-cooling Normal cooling None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Refrigeration and Air Conditioning The condensing pressure due to the presence of non-condensable gases, as compared to that actually required for condensing temperatures without non-condensable gases, Will be higher Will be lower May be higher or lower depending upon the nature of non-condensable gases Will remain unaffected Will be higher Will be lower May be higher or lower depending upon the nature of non-condensable gases Will remain unaffected ANSWER DOWNLOAD EXAMIANS APP
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