Allied & ICAR Exam Bank • ALLIED_3343 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Watershed Management

Subtopic: Check dams and farm ponds

Question Statement:

A farm pond of inverted frustum shape #4 has top water surface area A_top = 650 m^2, bottom area A_bot = 200 m^2, and depth d = 3 m. Using prismoidal formula V = (d/6)*(A_top + 4*A_mid + A_bot) with A_mid = (A_top + A_bot)/2 = 425.0 m^2, storage volume in m^3 is approx:

Answer Key:

1275.0

Step-by-Step Solution & Explanation

Volume V approx = 3 * Mean Area = 1275.0 m^3.
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