Allied & ICAR Exam Bank • ALLIED_1219 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Micro-Irrigation Systems

Subtopic: Emission Uniformity

Question Statement:

In a field evaluation of 100 drip emitters, the average discharge of the lowest 25% (lowest quartile) emitters is $q_{25} = 3.6\text{ L/h}$, while the mean discharge of all 100 emitters is $\bar{q} = 4.0\text{ L/h}$. The statistical emission uniformity ($EU = \frac{q_{25}}{\bar{q}} \times 100$) in % is:

Answer Key:

90.0

Step-by-Step Solution & Explanation

$EU = \frac{3.6}{4.0} \times 100 = 90.0\%$.
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