Dual Gauge refers to tracks with three rails enabling use by which traction types?

• A. Only 4" traction
• B. Three different gauge sizes
• C. Both 4" and 5" traction types
• D. Only 5" traction

Answer: (C)

Dual Gauge refers to a track laid with three rails so it can be used by trains built for two different gauge widths. In the 4-inch and 5-inch ride-on train world, that means both 4" trains and 5" trains can run on the same track. The extra rail provides a second gauge path on the same alignment, with each wheelset riding on the rails appropriate for its gauge while a common rail helps keep everything aligned and guided. This setup saves space and allows smoother operation when you have equipment in both sizes. It’s about sharing one track between two gauges, not about three different gauges.