Question Bank • QB_SUB_IDE_0173 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Sprinkler Irrigation Design & Distribution Uniformity

Subtopic: Sprinkler precipitation application rate

Question Statement:

A drip emitter operates under an operating pressure head of $H = 10.0\text{ m}$. The discharge equation is $q = 1.25 H^{0.5}$ (where $q$ is in L/h and $H$ is in m). The emitter flow rate (in L/h, rounded to 2 decimal places) is:

Answer Key:

3.95

Step-by-Step Solution & Explanation

$q = 1.25 \times (10.0)^{0.5} = 1.25 \times 3.1623 = 3.95\text{ L/h}$
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