A thermostatic expansion valve is properly controlling evaporator superheat. Adjusting this valve to lower the evaporator superheat setting will result in which of the following?

Correct Answer: Option D — the evaporator feed will increase

Decreasing the superheat setting relaxes the spring tension opposing the thermal bulb pressure, causing the thermostatic expansion valve to open further, increasing refrigerant mass flow and evaporator feed for enhanced cooling capacity.