Certified Landscape Irrigation Auditor Practice Exam 2026 - Free Landscape Irrigation Practice Questions and Study Guide

The correct approach to making nozzle adjustments involves ensuring that the nozzle is securely screwed into the stem all the way and then rotating the stem. This method is effective because it stabilizes the nozzle's position while allowing for adjustments to the angle or coverage of the spray pattern without the risk of it detaching or misaligning. Properly securing the nozzle into the stem ensures that the irrigation system functions efficiently, providing adequate distribution of water and minimizing waste.

In contrast, loosening the nozzle and rotating it could lead to an insecure fit, which may cause it to become misaligned or fall off during operation, resulting in uneven watering. Manually adjusting water flow rates is also a viable method but is not primarily associated with nozzle adjustments. This option focuses on broader system control rather than the specific nozzle orientation or configuration. Lastly, removing the nozzle entirely and replacing it is unnecessary for typical adjustments and could lead to added labor and potential installation issues if not done carefully. Each of these alternative methods has limitations that make the correct option more logical and functional for regular nozzle adjustments.