If a locomotive inspection reveals non-complying conditions, when can the locomotive be moved?

The option stating that the locomotive can be moved as a single locomotive under power is correct because it signifies that the locomotive can operate under its own power even when non-complying conditions are identified, provided that these conditions do not pose an imminent safety risk. Moving a locomotive that has been found to have deficiencies is often regulated by safety protocols that ensure it remains controllable and manageably operational.

This choice emphasizes the understanding that inspection findings do not automatically preclude movement. In many cases, if proper precautions and safety measures are observed, locomotives with minor or non-critical issues may still be able to be moved under their own power without necessitating attachment to other equipment or vehicles, ensuring operational flexibility within safety guidelines.

The other options may imply restrictions or conditions regarding movement that are not aligned with operational safety practices, which is why they do not apply in this context. Moving under various conditions other than under power alone typically involves additional safety checks or requirements.