Which description most accurately defines a Spring Switch?

Which description most accurately defines a Spring Switch?

• A. A switch with a spring mechanism to restore the switch points after being trailed through
• B. A switch that locks in place after movement
• C. A switch that requires manual reset
• D. A switch that is electronically controlled

Answer: (A)

Spring switches use a spring mechanism to automatically restore the points to their normal, straight-ahead position after a train has trailed through. This automatic reset keeps the turnout ready for the next train without any manual intervention. The other descriptions miss this automatic return: a switch that locks in place wouldn’t reset by itself, one that requires manual reset needs user action, and being electronically controlled doesn’t by itself describe the spring-driven return feature that defines a spring switch.

Spring switches use a spring mechanism to automatically restore the points to their normal, straight-ahead position after a train has trailed through. This automatic reset keeps the turnout ready for the next train without any manual intervention. The other descriptions miss this automatic return: a switch that locks in place wouldn’t reset by itself, one that requires manual reset needs user action, and being electronically controlled doesn’t by itself describe the spring-driven return feature that defines a spring switch.