| Referring to the illustrated dual duct multiple zone HVAC system, how is the space temperature directly controlled? GS-RA-43 |
| A) The space air temperature is controlled by automatically proportioning the cold and hot air streams at the mixing unit. |
| B) The space air temperature is controlled by automatically controlling the steam flow through the preheat coil. |
| C) The space air temperature is controlled by automatically controlling the chilled water flow through the cooling coil. |
| D) The space air temperature is controlled by automatically controlling the steam flow through the reheat coil. |
