A tile drainage system draining 12 ha flows at the design capacity for two days in response to a storm. If the system is designed using a drainage coefficient of 1.25 cm, the amount of water removed from the drainage area during two days is
Options:
(A) 150 m³
(B) 1500 m³
(C) 30 m³
(D) 3000 m³
Official Answer Key:
D
Step-by-Step Solution & Explanation
Volume removed = Area × drainage coefficient × number of days = (12×10,000 m²) × 0.0125 m/day × 2 days = 120,000 × 0.025 = 3000 m³.
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