Oklahoma Service Technician Practice Exam

What aspect can change the delivery rate of pesticide application equipment?

1. Equipment weight

2. Environmental conditions

3. Corrosion or wear over time

4. Type of pesticide being used

The correct answer is: Corrosion or wear over time

The delivery rate of pesticide application equipment can indeed be influenced by factors related to equipment condition, such as corrosion or wear over time. As equipment ages, components may suffer from degradation, which can affect their ability to function effectively. For example, nozzles may become clogged or worn, leading to an inconsistent spray pattern or reduced flow rate. Similarly, hoses and pumps might wear out, resulting in leaks or decreased pressure that can further alter the delivery rate of the pesticide being applied. While other factors, like the type of pesticide, can affect how it is applied (for instance, some may require specialized nozzles), the physical condition of the equipment itself is a direct mechanism that can lead to varying delivery rates. Environmental conditions, such as wind speed or humidity, can impact how pesticides behave once applied but do not directly change the output rate from the equipment itself. Equipment weight does not significantly influence how much pesticide is dispensed but may affect mobility or stability during application. Thus, understanding how wear and corrosion can alter delivery is crucial for maintaining effective pest control.