Q. In a chilled water system, the refrigerant is used to cool the air directly while in the direct expansion system, a secondary medium like water is used to cool the air.
✅ Correct Answer: (B)
false
Explanation: in the direct expansion system, the refrigerant is used to cool the air directly while in the chilled water system, a secondary medium like water is used to cool the air. in the chilled water system, the refrigerant first cools the water and then the water cools the air.