Question 15Refrigeration & AC - 1st Asst/Chief

The correct answer is A) The coil now has a lower efficiency and a higher bypass factor. Explanation: The corrosion on the fins of the air conditioning cooling coil will reduce the surface area available for heat transfer, decreasing the overall efficiency of the coil. This means that less heat will be absorbed by the coil, resulting in a higher bypass factor (more air bypassing the coil without being cooled). The other options are incorrect because: B) The efficiency would be affected by the reduced surface area. C) The bypass factor would increase, not decrease, due to the reduced heat transfer. D) Both the efficiency and bypass factor would decrease, not increase, with the reduced surface area.