The Mast and Support Arms are powered by which systems?

• A. Hydraulic pumps only.
• B. Manual operation only.
• C. Powered by batteries, motors, and logic functions.
• D. Solar power only.

Answer: (C)

The Mast and Support Arms are driven by an electrical control system, not purely by hydraulics or manual action. Electric motors provide the actual actuation to move the arms and mast, and a logic-based control system coordinates the motion, sequencing, speed, and safety interlocks. Batteries may be present as a backup power source to allow limited operation during a power loss, while the normal operation relies on motors fed by the electrical supply and controlled by logic functions. Solar power isn’t used for this purpose in typical escalator/moving walk systems, and relying on manual operation would defeat the automated control them. This combination—batteries, motors, and logic functions—best fits how the Mast and Support Arms are powered and controlled.