Texas Pesticide Applicator Practice Exam

If a sprayer delivers less spray than desired, which method can be used to change the rate?

1. Increase pressure

2. Reduce ground speed

3. Change to larger nozzles

4. Any of these options

The correct answer is: Any of these options

Increasing the pressure when operating a sprayer can raise the flow rate of the spray, allowing more pesticide to be delivered over a given area. This method is often used to achieve the desired application rate, especially if delivery is currently insufficient. Reducing ground speed is another effective way to change the application rate. By slowing down the pace of the sprayer, the amount of spray applied per unit area increases, which can help to compensate for any deficiencies in delivery. Changing to larger nozzles also directly affects the spray output. Larger nozzles can deliver a higher volume of pesticide, thus increasing the amount that is applied. This is particularly useful if the current nozzle size is restricting flow. All of these methods are valid approaches to increase the rate at which a sprayer delivers pesticide. Therefore, the correct choice acknowledges that any of these adjustments can effectively address the issue of delivering less spray than desired.