Which statement best describes gravity roller conveyors?

• A. Gravity roller conveyors are commonly used to quickly move and accumulate lightweight bulk packages
• B. They require powered rollers to move items
• C. They cannot handle accumulating packages
• D. They are primarily used for overhead transport

Answer: (A)

Gravity roller conveyors move items using gravity, not a motor. Because the rollers freely rotate and the line is usually inclined or lightly flat, lightweight packages can glide along smoothly without powered rollers. This simplicity makes them a common choice for moving small, light items quickly and for arrangements where you want to hold or bunch items together to accumulate them at a stopping point. Since there’s no drive mechanism, the system is inexpensive and low maintenance, which suits many lines that need short, efficient runs of light packages.

The statement aligns with this: they’re designed for quick movement of light items and can be used in accumulation scenarios where stops or brakes hold items in place behind one another. They’re not designed for overhead transport, and they don’t require powered rollers, which is why the other descriptions don’t fit.