Structural Pest Control Applicator Practice Exam

What is a main function of spray nozzles?

1. To regulate the flow of liquid

2. To atomize the liquid stream

3. To spread droplets in a specific pattern

4. All of the above

The correct answer is: All of the above

Spray nozzles serve multiple important functions in pest control applications, which collectively contribute to their effectiveness. One of the primary functions is to regulate the flow of liquid. This allows for precise control over the amount of pesticide being applied, ensuring that the correct dosage reaches the target area without waste or over-application. Another crucial function of spray nozzles is to atomize the liquid stream. Atomization is the process of breaking the liquid into fine droplets, which helps improve coverage and penetration of the pesticide. Smaller droplets can more effectively reach pests hiding in crevices or foliage, providing a more thorough treatment. Additionally, spray nozzles are designed to spread droplets in a specific pattern. This is vital for achieving uniform coverage across surfaces and optimizing the effectiveness of the pesticide application. By controlling the droplet size and spray pattern, nozzles help ensure that the product is distributed in a manner that maximizes its impact while minimizing unintended exposure to non-target areas. In summary, the correct answer encompasses all these key functions: regulating flow, atomizing liquid, and spreading droplets in a specific pattern, which are integral to effective pest control.