What tool is used to measure wind speed during an irrigation system audit?

• A. Manometer
• B. Hydrometer
• C. Anemometer
• D. Barometer

Answer: (C)

The correct choice is an anemometer, which is specifically designed to measure wind speed. In the context of an irrigation system audit, knowing the wind speed is crucial because it impacts evaporation rates and the efficiency of water application. Anemometers can provide real-time data on wind conditions, which is essential for determining how effectively irrigation systems are delivering water to plants under varying environmental factors.

Manometers measure pressure, typically within a fluid, but are not applicable to wind speed measurement. Hydrometers are used to measure the specific gravity or density of liquids, making them unsuitable for air or wind measurements. Barometers measure atmospheric pressure, which can influence weather conditions but does not directly gauge wind speed. Using an anemometer allows landscape professionals to optimize irrigation practices based on accurate wind data, contributing to more effective water use and management in landscapes.