What must be done before making a reverse movement when an engine or car stops at an automatic safety switch?

Before making a reverse movement when an engine or car stops at an automatic safety switch, the points must be aligned by hand. This action is critical because it ensures that the track alignment is safe and properly set for the reverse movement. Manual alignment allows for the conductor or crew to visually confirm that the switch is in the correct position and that the movement can proceed safely without risk of derailment or other accidents.

Options that suggest automatic alignment or no action are not sufficient because they may lead to situations where the switch is not in the necessary position to facilitate a safe reverse movement. Moreover, the intervention of a conductor is not just an automated requirement, but rather speaks to the operational protocols that must be followed to maintain safety and compliance with railroad regulations.

In summary, manual alignment by hand ensures the points are correctly positioned for the intended movement, prioritizing safety and adherence to operational rules.