Environmental engineering 5

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Created by: Chris
  1. GROUND WATER- OCCURANCE, BASIC HYDRAULIS AND WATER QUALITY In terms of land area ground water refreshs what?
  2. In terms of population groundwater supplies what percentage of the global supply? Differs country to country
  3. Ground water use, which of these is an untrue statement?
  4. Define ground water:
  5. Define an aquitard:
  6. define an aquifer:
  7. Define residense time:
  8. What is the residence time of water regarding a pumped well?
  9. What is the residence time regarding an average natural discharge well?
  10. What is a recharge area?
  11. Which of the following does not influence residence time?
  12. Which is not a definition of the water table?
  13. Going downwards, in a conventional zone, what are the names of each zone?
  14. Describe the zones in the same fashion, but in the confined case.
  15. Which of the following isn't a suitable definitions for the piezometric surface?
  16. Define groundwater head:
  17. define elevation head:
  18. Define pressure head:
  19. Darcy's law is very important to engineers regarding water (only used for wayer). What is it? Q=discharge K=conductivity dH=difference in height dy dX=distance between wells/boreholes dx
  20. If Darcy's law is being used on a liquid that isn't clean water we have to consider the hydraulic conductivity. K. How is K best understood?
  21. So what do we call the the hydraulic conductivity K of another liquid?
  22. What is the response of the water table when a well is drilled? One of these is untrue.
  23. When ground water is polluted problems can arise, which of the following is untrue about pollution and ground water?
  24. Why is groundwater a very fine quality?
  25. Which of the following is not a pollutant to ground water?

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