Texas Pesticide Applicator Practice Exam

What effect do worn nozzle tips have on spray patterns compared to new nozzles?

1. Produce better spray patterns

2. Produce higher flow rates

3. Produce lower flow rates

4. Do not affect spray patterns

The correct answer is: Produce lower flow rates

Worn nozzle tips significantly impact spray patterns and flow rates, leading to lower flow rates when compared to new nozzles. As nozzle tips wear down, the orifice size increases, allowing for greater passage of the liquid. This change can lead to a less consistent spray and an inefficient distribution of the pesticide, often resulting in overlapping or uneven application across the target area. In contrast, a new nozzle is designed to provide a specific flow rate and spray pattern that ensures even coverage, which is critical for effective pest control. Therefore, as nozzles wear out, the control over both the volume of material being applied and the uniformity of the spray pattern diminishes. This phenomenon means that operators may inadvertently apply less pesticide per unit area than intended, thereby affecting the overall efficacy of the pest management strategy. Understanding the importance of maintaining and replacing nozzle tips is crucial for achieving optimal application results.