If fuel quantity falls below 16,000 pounds, where is one of the caution annunciators located?

When the fuel quantity drops below 16,000 pounds in a C-17, a caution alert is activated to inform the crew about the low fuel condition. One of the primary display elements for this caution is the total fuel indicator. This indicator is specifically designed to show the total amount of fuel on board, allowing pilots to quickly assess their fuel status. When the fuel level approaches this threshold, the associated caution annunciator will illuminate, thereby alerting the crew to manage their fuel more effectively and take necessary actions.

The other options do not serve the same function. The mission computer display panel and the fuel system panel include various operational data and system statuses but do not specifically indicate low fuel conditions with caution alerts. The center windshield assembly post is not related to fuel indications at all but rather to structural purposes, further affirming that the total fuel indicator is the correct answer. It is crucial for pilots to understand where these alerts are located and their significance to maintain safe operation parameters during flight.