Which device stops the lift if the footrest encounters an object?

• A. Footrest Obstruction Device
• B. Lower Terminal Stopping Device
• C. Electric Contact
• D. Upper Terminal Stopping Device

Answer: (A)

The safety feature being tested is the Footrest Obstruction Device. This device is specifically designed to sense anything blocking or wedged into the moving footrest area. When an object is encountered, it triggers the escaltor’s drive to stop immediately, preventing possible injury from feet being pinched or dragged.

The other options serve different safety roles. A device at the lower landing is meant to stop the escalator when it reaches the bottom, and a device at the upper landing stops it at the top; these are terminal stopping devices for end-of-run safety. An electric contact is part of the control circuitry in some systems, but it is not the mechanism that stops the escalator due to an obstruction on the footrest.