Which term is a power-operated switch also equipped for hand operation?

• A. Automatic Safety Switch
• B. Crossover
• C. Dual Control Switch
• D. Derail

Answer: (C)

The concept being tested is having a switch that can be operated both remotely (power-operated) and locally by hand. The term that describes this is a Dual Control Switch. It includes a motor or other power mechanism to throw the points, while also providing a manual hand throw (handwheel or lever) at the switch stand for local operation when needed, such as power failure or maintenance. This is why it fits the description of a switch that is power-operated and yet equipped for hand operation.

The other terms refer to different ideas: Automatic Safety Switch relates to automatic safety features rather than dual operation capability; a Crossover is a configuration of two switches allowing movement between tracks, not a single device defined by its hand-operable feature; a Derail is a device intended to derail a train and is not a standard hand-operable switch.