Which component controls the mixing of air for temperature?

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Multiple Choice

Which component controls the mixing of air for temperature?

Explanation:
Mixing hot and cold air to set the cabin temperature is done by the temperature control valve. This valve adjusts how much heated air (from the heater) versus cooler air (from the ram or intake air) blends together, responding to the temperature setting to maintain the desired comfort level. The humidifier changes moisture, not temperature; the oxygen regulator keeps the oxygen level steady, not the temperature; and the electrovalve is a general flow-control valve, not specifically for mixing air to control temperature.

Mixing hot and cold air to set the cabin temperature is done by the temperature control valve. This valve adjusts how much heated air (from the heater) versus cooler air (from the ram or intake air) blends together, responding to the temperature setting to maintain the desired comfort level. The humidifier changes moisture, not temperature; the oxygen regulator keeps the oxygen level steady, not the temperature; and the electrovalve is a general flow-control valve, not specifically for mixing air to control temperature.

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