How should the spread cable be checked prior to firing?

The correct approach to checking the spread cable prior to firing is to ensure it is taut. A taut spread cable is essential for the proper functioning of the mortar system. When the cable is taut, it allows for the accurate alignment and stability of the mortar tube during firing. Any slack in the cable can lead to inconsistent firing patterns and could ultimately affect the overall accuracy and effectiveness of the mortar rounds.

While inspecting for wear and tear, fraying, or rust is important for overall equipment maintenance, these factors do not directly address the immediate operational requirement for firing. Therefore, ensuring that the spread cable is taut takes precedence to guarantee the mortar operates reliably and accurately when firing.