What type of switches are used in the Receiving Yard?

• A. Manual hand-operated switches
• B. Remote-controlled switches
• C. Electronic interlocking switches
• D. Automatic safety switches

Answer: (D)

The receiving yard relies on switches that operate automatically to keep movements safe and efficient. Automatic safety switches are designed to set and lock the route without needing a person to flip the switch each time, reducing the chance of human error and ensuring a train or car moves along the correct path. In a busy yard, where many cars are being received and routed quickly, this automatic protection helps prevent incorrect routes and possible collisions, making operations smoother and safer.

Manual hand-operated switches would be too slow and error-prone in high-traffic yard work, and remote-controlled switches still require active control from personnel. Electronic interlocking switches are important for preventing conflicting moves on main lines, but the yard's primary need here is automatic, safe switching to handle the flow of incoming cars, which is why automatic safety switches are the best fit.