Which switch position allows conditioned air to cool the flight deck CRT displays?

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Multiple Choice

Which switch position allows conditioned air to cool the flight deck CRT displays?

Explanation:
Conditioned air must be directed to the cockpit avionics cooling path to keep the CRT displays from overheating. The Standby position on the Display/Avionics fan control panel provides a continuous, dedicated airflow to the flight deck avionics cooling system, ensuring the CRTs stay within safe temperatures even when other systems aren’t demanding full cooling. If you choose Off, no cooling air is sent to the displays. In Auto, airflow would depend on sensor logic and may not guarantee cooling when the displays need it. Simply turning On may not guarantee the same dedicated cooling path as Standby. So, Standby is the best choice because it maintains reliable cooling for the flight deck displays.

Conditioned air must be directed to the cockpit avionics cooling path to keep the CRT displays from overheating. The Standby position on the Display/Avionics fan control panel provides a continuous, dedicated airflow to the flight deck avionics cooling system, ensuring the CRTs stay within safe temperatures even when other systems aren’t demanding full cooling.

If you choose Off, no cooling air is sent to the displays. In Auto, airflow would depend on sensor logic and may not guarantee cooling when the displays need it. Simply turning On may not guarantee the same dedicated cooling path as Standby. So, Standby is the best choice because it maintains reliable cooling for the flight deck displays.

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