What are the common types of nozzles used in firefighting?

The correct choice identifies the common types of nozzles that are predominantly utilized in firefighting. Straight stream nozzles are effective for reaching distances and delivering water with high velocity, making them suitable for applying water directly into the fire with minimal evaporation. Fog nozzles, on the other hand, disperse water into a fine mist, which enhances cooling and reduces the speed of heat transfer, making them ideal for protecting personnel and creating a protective barrier against flames. Adjustable nozzles provide versatility, allowing firefighters to switch between different patterns, such as fog and straight stream, based on the changing dynamics of the fire situation.

These three types encompass a broad range of operational needs encountered in fire suppression activities, illustrating the importance of having a variety of nozzle options for different scenarios. Other types mentioned in the remaining options, while used in specific contexts, do not represent the common categories found in everyday firefighting operations.