What is required when straight stream is employed for extinguishing a fire?

When using a straight stream to extinguish a fire, a focused attack is essential. This method allows the firefighting team to aim directly at the base of the fire, applying the concentrated water stream where it is most needed. A focused attack helps effectively disrupt the combustion process by targeting the hottest areas of the fire and minimizing the chance of splashing or unintended spread of the flames.

In contrast, options like wide coverage or high volume imply a more dispersed approach, which may not effectively penetrate the core of the fire. Minimal penetration would be counterproductive since a straight stream is designed to reach deep into the fire, not just coat the exterior. Therefore, a focused attack is the most efficient technique when employing a straight stream, ensuring that the firefighting effort is directed and effective in extinguishing the fire.