Which term describes a hand-operated switch that is equipped with an electrically controlled device to restrict its movement?

Which term describes a hand-operated switch that is equipped with an electrically controlled device to restrict its movement?

• A. Fixed Signal
• B. Electrically Locked Switch
• C. Fouling Point
• D. Extra Train

Answer: (B)

This describes how a hand-operated switch is safeguarded by an electrical locking device. An electrically locked switch is a manual switch that can be thrown by hand, but an electrical mechanism locks it in place or restricts movement to prevent changes unless the proper interlocking conditions are met. This helps ensure the switch stays in the correct position for the configured route and that it cannot be moved accidentally or at an unsafe time. The other terms don’t fit this situation: a fixed signal is a stationary signal, not a switch with a locking mechanism; a fouling point is a track location where clearance is limited due to opposing equipment or geometry; an extra train simply means an additional train in the timetable.

This describes how a hand-operated switch is safeguarded by an electrical locking device. An electrically locked switch is a manual switch that can be thrown by hand, but an electrical mechanism locks it in place or restricts movement to prevent changes unless the proper interlocking conditions are met. This helps ensure the switch stays in the correct position for the configured route and that it cannot be moved accidentally or at an unsafe time.

The other terms don’t fit this situation: a fixed signal is a stationary signal, not a switch with a locking mechanism; a fouling point is a track location where clearance is limited due to opposing equipment or geometry; an extra train simply means an additional train in the timetable.