QWEL - STUDY GUIDE UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

QWEL - STUDY GUIDE UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. What is pressure loss/gain in 1' of elevation?
Answer:
0.433 psi

Question:
2. What is a manifold?
Answer:
Grouping of irrigation valves

Question:
3. What is the strongest Backflow Preventer?
Answer:
Reduced Pressure Backflow Preventer

Question:
4. Which sprinklers throw the longest range?
Answer:
Rotor Sprinklers

Question:
5. What does ETo represent?
Answer:
Watered cool season grass cut to 4"-6" tall

Question:
6. What has slower infiltration rate?
Answer:
Slopes

Question:
7. How is Line Source measured
Answer:
Inches, has a PR

Question:
8. How is Point Souce measured
Answer:
Gallons, has no PR

Question:
9. What is Wilting Point

, Answer:
Plants unavailable water

Question:
10. Can Texture of soil be changed?
Answer:
No, texture of soil can not be changed

Question:
11. Soil Textures
Answer:
Sand, Silt, Clay

Question:
12. What are Soil Amendments/Mulches
Answer:
Organic Matter; Manure; Compost tea; Cover crop; Gypsum; Lime

Question:
13. What are sources of Water
Answer:
Conservation; Recycled Water; Portable Water

Question:
14. What are the different types of Winter fertilizers?
Answer:
Slow release-avoids runoff Organic - Bone meal, alfalfa pellets Nonorganic

Question:
15. What are the different types of Summer fertilizers?
Answer:
Liquid Granular

Question:
16. What is DU?
Answer:
Distribution Uniformity % (can only be determined in an audit)

Question:
17. What is PR?
Answer:
Precipitation Rate inches/hour (can be determine in an audit; manufacturers catalog; flow rate formula)

Question:
18. How is water pressure measured?