Regular checks ensure safe and efficient operation.

• A. Maintenance
• B. Audio-Visual Alert
• C. Chairlift Capacity Plate
• D. Electrical Installation

Answer: (A)

Regular checks are part of maintenance, the ongoing process of keeping the escalator or moving walk in safe, reliable condition. Maintenance involves scheduled inspections, servicing, lubrication, adjustments, and replacement of worn parts, so issues are caught before they cause problems and performance stays smooth. It also helps ensure safety devices like brakes and emergency stops are functioning and that components such as drive and conveyor systems remain properly aligned and tensioned, all of which support safe and efficient operation over time.

An Audio-Visual Alert is a warning system that communicates conditions but doesn’t by itself establish or maintain safe operation. A Chairlift Capacity Plate is simply a label indicating maximum rider limits, not a maintenance practice. Electrical Installation concerns how wiring and power are set up, which is important but not the routine activity of regularly checking and servicing equipment.