What includes the foot platform, seat, and grips?

• A. Chair Specifications
• B. Sprocket Alignment
• C. Footrest Obstruction Device
• D. Upper Terminal Stopping Device

Answer: (A)

In this item, you’re being tested on what the chair unit of an escalator or moving-walk system is described by. The parts that a rider actually uses—the foot platform where the feet rest, the seat that supports the rider, and the grips or handholds for stability—are all physical components that define the chair itself. Those elements are what chair specifications cover, outlining the exact construction, dimensions, and safety criteria for the chair. The other options refer to separate subsystems or safety devices (drive sprocket alignment, a device to prevent footrest obstructions, or an upper-terminal stop mechanism) and are not about describing the chair as a complete unit.