Which of the following is not a proper water application technique?

The correct answer is focused on the application techniques of water in wildfire situations. When considering fire suppression, techniques must prioritize effectiveness and safety.

Applying water using a fog or spray stream can create a mist that may not effectively reach the flames or may carry the water away due to wind, leading to inefficiencies in fire suppression. While fog streams can be useful in certain situations, they may not be effective in cooling hot spots or adequately suppressing flames, especially in the intense heat of a wildfire.

In contrast, the other methods listed are generally accepted techniques for proper water application in wildland environments. These involve targeting the fire directly, either by applying water inward from a safe distance or using a straight stream to penetrate the heat effectively and impact the fire directly. Standing in the blackened area to spray perpendicular to the control line helps ensure that water is applied correctly without being overwhelmed by fire behavior.

Overall, understanding the most effective methods for applying water in wildland firefighting is crucial for ensuring a successful and safe operation while battling wildfires.