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Unformatted text preview: rate, clear debris, defend against dogs/rattlesnakes, etc Efficiency (Multiple Choice) 11. A crop has had 3" of ET since the last irrigation. This depletion is uniform across the whole field. This is an actual field with a real irrigation system in it. The system is SDI (subsurface drip irrigation), assuming no evaporation loss, no spray, nor runoff losses. Exactly 3" is applied to the field. What is the Efficiency? a) 100% b) Less than 100% c) Greater than 100% d) You can't tell, with the information that is given. 12. Which one of the following is impossible to achieve for practical irrigation of a field? a) The Efficiency is greater than the (DU x 100) on the same field b) Underirrigation simultaneously with a high Efficiency c) The (DU x 100) is greater than the Efficiency d) The Efficiency is greater than 100%....
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- Fall '08