Which feature allows emergency evacuation of retractable arms?

• A. Manual Unlocking
• B. Winding Drums
• C. Emergency Power Duration
• D. Capacity Plate

Answer: (A)

Manual unlocking is what lets you override the mechanical lock that holds the retractable arms in place, so you can move them by hand to create a clear path for passengers to evacuate during an emergency. This direct override is the practical means to free the arms when normal power or drive control isn’t available. The winding drums are part of the drive and tension system, not a method for evacuating the arms. Emergency power duration relates to how long power is available to run the escalator, not to releasing arms. The capacity plate only shows how many people can be on the escalator at once and has no function in an emergency evacuation of the arms.