Which of the following is a component of pre-calibration for sprayers?

Repairing and replacing faulty hoses is crucial as part of pre-calibration for sprayers because it ensures the equipment functions properly before application. If hoses are damaged or faulty, they can lead to leaks or inconsistent flow rates, which can significantly affect the accuracy of pesticide application. Ensuring that all components of the sprayer are in good working condition helps maintain the integrity of the calibration process, allowing for precise application rates and minimizing environmental impacts or damage to crops.

While other options may relate to aspects of sprayer operation or maintenance, they do not directly pertain to the foundational process of preparing the equipment for accurate pesticide application. Applying pesticides at different rates would be more aligned with testing and adjusting application strategies rather than pre-calibration. Adjusting driving speed may influence coverage but is not a fundamental step in pre-calibrating the spray system itself, and increasing the tank capacity does not contribute to accuracy in measuring and applying pesticide rates.