Extra Precipitation Rate Calculations

Extra Precipitation Rate Calculations. 1. What is the precipitation rate of sprinklers spaced 20 feet apart in a square pattern? Each sprinkler uses 10 gpm. 2. What is the precipitation rate of sprinklers spaced 30 feet apart in a square pattern? Each sprinkler uses 15 gpm. 3. What is the precipitation rate of sprinklers spaced 20 feet apart in a square pattern? Each sprinkler uses 8 gpm. 4. What is the precipitation rate of sprinklers spaced 35 feet apart in a square pattern? Each sprinkler uses 20 gpm. 5. What is the precipitation rate of sprinklers spaced 18 feet apart in a square pattern? Each sprinkler uses 5 gpm. 6. What is the precipitation rate of sprinklers spaced 30 feet apart in a triangular pattern? Each sprinkler uses 12 gpm. 7. What is the precipitation rate of sprinklers spaced 40 feet apart in a triangular pattern? Each sprinkler uses 15 gpm. 8. What is the precipitation rate of sprinklers spaced 25 feet apart in a triangular pattern? Each sprinkler uses 10 gpm. 9. What is the precipitation rate of sprinklers spaced 50 feet apart in a triangular pattern? Each sprinkler uses 20 gpm. 10. What is the precipitation rate of sprinklers spaced 50 feet apart in a triangular pattern? Each sprinkler uses 18 gpm. 11. What is the precipitation rate of sprinklers that each use 15 gpm, are spaced 35 feet square spacing and set at a 180 degree arc? 12. What is the precipitation rate of sprinklers that each use 12 gpm, are spaced 25 feet square spacing and set at a 270 degree arc? 13. What is the precipitation rate of sprinklers that each use 20 gpm, are spaced 45 feet square spacing and set at a 110 degree arc? 14. What is the precipitation rate of sprinklers that each use 12 gpm, are spaced 30 feet triangular spacing and set at a 90 degree arc ? 15. What is the precipitation rate of sprinklers that each use 13 gpm, are spaced 25 feet triangular spacing and set at a 120 degree arc ? 16. What is the precipitation rate of sprinklers that each use 25 gpm, are spaced 55feet triangular spacing and set at a 180 degree arc ? 17. What is the precipitation rate of the following irrigated area? Area - 40 feet x 80 feet 4 90 degree corners at .36 gpm each 8 180 degree halves at .75 gpm each 6 360 degree full circles at 1.5 gpm each 18. What is the precipitation rate of an irrigated area 10 feet x 40 feet containing 4 - 90 degree corners at .6gpm each and 6 – 180 degree halves at 1.25gpm each. 19. What is the gpm of sprinklers spaced 20 feet apart in a triangular spacing if the precipitation rate is .88 in/hr? 20. What is the gpm of sprinklers spaced 25 feet apart square spacing if the precipitation rate is .63 in/hr? Answers: 1. 2.4 in/hr11. 2.36 in/hr 2. 1.6 in/hr12. 2.83 in/hr 3. 1.9 in/hr13. 3.11 in/hr 4. 1.6 in/hr14. 5.12 in/hr 5. 1.5 in/hr15. 6.9 in/hr 6. 1.48 in/hr16. 1.58 in/hr 7. 1.04 in/hr17. .49 in/hr 8. 1.78 in/hr18. 2.38 in/hr 9. .89 in/hr19. 3.16 gpm 10. .80 in/hr20. 4.01 gpm