Which of the following indicates that the escape slide is armed?

The correct indication that the escape slide is armed is when the handle is down and shows a red indicator. This configuration is specifically designed for safety and operational readiness. When the escape slide is armed, it means that it is prepared for immediate deployment in the event of an emergency evacuation. The red indicator serves as a visual cue that the system is in a potential activation state, alerting the crew that the slide can be deployed if necessary.

In contrast, other configurations do not indicate that the slide is armed. For instance, if the handle is up with a green indicator, it signifies that the slide is disarmed and not ready for use. The green indicator typically indicates a safety status. Similarly, a down position with a green indicator suggests that the system is either disarmed or in a standby state where it cannot be deployed. Understanding these indicators is crucial for ensuring the safety of passengers and crew during emergencies.