Which screen on a BPU DCS is the fuel source selected?

The correct answer is associated with the function of the BPU (Boiler Plant Unit) Distributed Control System (DCS). The Main screen typically serves as the primary interface for operators, displaying essential operational information, including the current fuel source in use. This screen is designed for quick access to crucial functions and parameters that help in monitoring and controlling the plant's operations.

The Main screen enables operators to quickly view and select different operational parameters, including the fuel source, which is critical for operational efficiency and performance management in power generation. This choice enhances the usability of the DCS, allowing for immediate adjustments and oversight.

The other screens mentioned serve different purposes. The Settings screen typically includes configuration options and adjustments for various parameters but is not the primary interface for selecting fuel. The Fuel Management screen would logically pertain to monitoring and tracking fuel usage and performance, rather than selection. The System Configuration screen is focused on overall system settings and does not provide the direct functionality needed for selecting the fuel source in real-time operation. Thus, the Main screen is the most appropriate and commonly used option for selecting the fuel source.