Landscaping License Practice Test

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What is the assumed irrigation efficiency rate for a drip irrigation system?

0.65
0.75
0.81
0.90

The correct answer is: 0.81

The assumed irrigation efficiency rate for a drip irrigation system is commonly accepted to be around 0.90, or 90%. Drip irrigation is designed to deliver water directly to the root zone of plants, minimizing evaporation and run-off, which enhances its efficiency. This high efficiency rate reflects the system’s ability to provide water in a precise and controlled manner, ensuring that nearly all the water used reaches the plants where it is needed most. While other irrigation systems may have lower efficiency rates due to factors such as excessive evaporation or runoff, drip irrigation's targeted approach leads to much less water waste, making it one of the most efficient methods available. Hence, the figure of 0.90 demonstrates the effectiveness of drip irrigation in delivering water effectively to the plants.