What condition governs securing power when the lead is fouling the lead?

• A. The track is lined properly.
• B. The dispatcher is present.
• C. All passengers off.
• D. The train is completely stopped.

Answer: (A)

Securing power when the lead is fouling the lead hinges on knowing that the route ahead is properly lined. When the track is lined correctly, the switch points are set for the intended movement and interlocking or signals confirm that the route is protected. This guarantees there’s a defined, safe path and reduces the risk of a movement entering the fouling point or a blocked section. If the track isn’t lined, you can’t be sure the route is protected, so applying or securing power would be unsafe. The presence of a dispatcher, passengers off, or the train being completely stopped don’t by themselves provide that same level of assurance about the physical protection of the route.