Allied & ICAR Exam Bank • ALLIED_1226 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Crop Water Requirement

Subtopic: Duty and Delta

Question Statement:

A crop with a base period $B = 120\text{ days}$ requires a total depth of water (delta) $\Delta = 60\text{ cm} = 0.60\text{ m}$ during the season. The duty of irrigation water at the field outlet in ha/cumec is:

Answer Key:

1728

Step-by-Step Solution & Explanation

$Duty = \frac{8.64 \times 120}{0.60} = \frac{1036.8}{0.60} = 1728\text{ ha/cumec}$.
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