What is a deluge gun primarily used for in firefighting?

A deluge gun is primarily used for ground applications that require the delivery of large volumes of water quickly. This type of nozzle is capable of discharging an extremely high flow of water, making it especially effective for suppressing large fires or for cooling exposures in situations with significant heat.

The design of a deluge gun allows for wide coverage of an area, and it can often be operated remotely, which helps enhance safety for firefighters working in dangerous environments. This high volume capability makes it ideal for scenarios such as industrial fires or during major incidents where water supply needs to be maximized quickly.

While other options represent various firefighting tactics and equipment—like aerial fire suppression and creating fire breaks—they do not describe the specific function for which a deluge gun is engineered. Similarly, while some applications involve direct fire attack, the deluge gun's primary advantage lies in its capacity to manage massive volumes of water effectively from the ground.