Final answer:
The status of aircraft escape slides being armed or disarmed is usually indicated by colored lights or digital displays. Other common indicators in other contexts, such as the Geiger counter, collection of tubes, and a machine with a digital readout from the provided photographs, are not applicable to escape slide operation.
Step-by-step explanation:
To determine whether the escape slides on an aircraft are armed or disarmed, there are specific indicators used by cabin crew. While the precise indicators may vary between different aircraft models, common indications include:
- Colored lights - There may be lights near the door that indicate if the slide is armed, usually with green signifying armed and red signifying disarmed.
- Audible alarms - Some planes might have an alarm that alerts whenever a slide is armed or disarmed.
- Pressure gauges - Not typically used for slide arming indications.
- Digital displays - There might be a monitor or display in the cabin or galley area indicating the status of the slide.
To confirm the specific indicators for arming or disarming escape slides, it's best to refer to the aircraft's operation manual. The photographs provided (Geiger counter, collection of vertical tubes, machine with a digital readout) are not relevant to the operation of aircraft escape slides.