The unit of volume of water used in irrigation practice in FPS system is Acre-Foot. there fore one Acre- Foot is equal to ___________________?
Correct answer: D. 43560 cubic feet
- A. 40560ft3
- B. 41560ft3
- C. 42560ft3
- D. 43560 cubic feet
Explanation
One acre contains 43,560 square feet, so an acre-foot of water, being one acre covered to a depth of one foot, contains 43,560 cubic feet. This is the standard FPS volume used in irrigation.
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