GATE AG 2009 • Q60
MCQ • 1 Mark
Section 5: Irrigation and Drainage Engineering
Irrigation Water Conveyance and Application Methods
Subtopic: Design of irrigation channels and underground pipelines
Question Statement:
(Statement for Q.59–60 as above.)
Options:
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(A) 4.8
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(B) 9.6
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(C) 16.6
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(D) 24.6
Step-by-Step Solution & Explanation
Volume of water required = net irrigation depth × basin area = 0.0832 m × (15×12) m² = 0.0832 × 180 = 14.976 m³. Stream size Q = 26 L/s = 0.026 m³/s. Time = Volume/Q = 14.976/0.026 = 576.0 s = 576/60 = 9.6 minutes, matching option (B).
Section 6 — Agricultural Process Engineering
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