What are the primary functions of a nozzle?

The primary functions of a nozzle are indeed best captured by the option that states it regulates the flow of liquid, atomizes it into droplets, and spreads those droplets into a pattern.

Nozzles play a crucial role in various applications, particularly in contexts such as spraying pesticides, applying paint, or delivering water in irrigation systems. By regulating the flow, they control how much liquid is allowed to pass through at any given time, ensuring that there is neither too little nor too much delivered. Atomization is a key function because it breaks up the liquid into smaller droplets, which is essential for effective coverage and penetration—this is particularly important in applications like pest control or painting, as smaller droplets cover surfaces more evenly. Spreading those droplets into a specific pattern allows for precise targeting or coverage areas, making it possible to optimize the application according to the needs of the task.

In contrast, other functions presented in the incorrect options do not align with the primary purpose of a nozzle. For example, controlling temperature and measuring pressure are not main functions of a nozzle itself; instead, they may be managed by other equipment that operates in conjunction with a nozzle. Similarly, while separating liquids or distributing fluid can have their own specific applications, these are not considered primary functions