Which term is a switch equipped with a spring mechanism that will restore the switch points to the normal position after having been trailed through?

• A. Spring Switch
• B. Interlocking Switch
• C. Hand-Operated Switch
• D. Electric Lock Switch

Answer: (A)

Spring switching is defined by a spring mechanism that automatically biases the switch points back to the normal, straight-ahead position after a train’s wheel flange has pushed them through and the train has passed. The spring provides the restoring force, so the track returns to its default alignment without manual action. This automatic restoration is what makes it this term special. Other types involve manual operation, interlocking coordination, or electric locking, but none automatically return to normal solely through a spring after trailing through.