Question Bank • QB_IDE_EXP_058 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Irrigation Water Conveyance and Application Methods

Subtopic: Irrigation efficiencies

Question Statement:

For the same irrigation system in the previous problem, calculate the water application efficiency ($\eta_a$) in percentage.

Answer Key:

75

Step-by-Step Solution & Explanation

Water application efficiency: $\eta_a = \frac{\text{Water stored in root zone}}{\text{Water delivered to farm}} \times 100 = \frac{60\text{ L/s}}{80\text{ L/s}} \times 100 = 75.0\%$
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