Which term ensures proper rope or chain travel?

• A. Sprocket Alignment
• B. Footrest Obstruction Device
• C. Electric Contact
• D. Routine Inspections

Answer: (A)

The key idea is that the rope or chain must follow a straight, consistent path through the drive system, and that happens when the sprockets are properly aligned. Sprocket alignment keeps all wheels and guides in the same plane so the rope/chain sits in the correct grooves and tracks smoothly from one sprocket to the next. When alignment is off, the rope or chain can derail, rub against guides, or climb over teeth, leading to uneven wear, noise, and possible failure.

The other items pertain to different aspects of safety or maintenance and don’t directly ensure that the rope or chain travels correctly. Footrest obstruction devices relate to preventing interference with the steps, electric contacts concern electrical safety, and routine inspections are general checks rather than the specific alignment that guarantees proper travel.