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)

A dual control switch is designed so a switch can be operated by power and also by hand. In railroad practice, electric or motor operators handle routine, remote control of turnout positions, but a manual hand throw keeps the switch functional when power is unavailable or during maintenance. This combination of power operation with a manual override ensures both efficiency and reliability on the line. The other terms describe different devices or configurations: an Automatic Safety Switch is a protective disconnect, a Crossover is a pair of turnouts that allow movement between tracks, and a Derail is a device used to deliberately divert a train off the track for safety.