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Natural Site Design Preservation and Protection


Quiz Questions

1. Dense root structures hold soils in place and ___________ the soil’s absorptive capacity.
Increase
Decrease
2. _____________________ is a leading cause of water quality problems in Indiana.
Soil color
Water runoff
Soil erosion
None of the above
3. Riparian buffer zones are natural vegetative zones along creeks, streams, channels, or other waterbodies. They typically consist of:
Tree
Shrub
Grass plantings
All of the above
4. _______________ are areas that are saturated by surface water or ground water for extensive periods of time and have the ability to support water-loving plants as a result of hydric soil conditions
Ponds
Riparian buffer zones
Wetlands
Streams
5. Wetlands help ___________ and absorb flood waters.
Speed up
Slow
6. When the stream or channel reaches its capacity after a heavy rain or a significant snow melt event, the channel overflows into the flood plain. This makes flood plains very beneficial because of their storage and conveyance capacity and ability to ____________ the volume and velocity of flood waters.
Increase
Reduce
7. U.S. Department of Agriculture Natural Resources Conservation Service studies have shown that soil erosion is greatly increased on slopes that have a grade of _______ percent or more.
5
10
15
20
8. In karst areas, surface water flows very _____________ into caves and sinkholes resulting in very little time for storm water to infiltrate into the soil.
Slowly
Quickly
9. What generally has the greatest impact on project planning, design, and layout?
Water
Location
Soil
None of the above
10. Soils with a seasonal ___________ water table can affect the stability of roads and streets and result in frost action problems in colder climates.
High
Low
11. ________________ clearing and grading on a construction site helps to preserve existing vegetation and natural drainage patterns of the site.
Maximizing
Minimizing
12. Fitting the design of the project to the terrain also _____________ the amount of clearing and grading which in turn minimizes erosion, environmental impacts, and project costs.
Increases
Reduces
Does not affect
None of the above
13. Using natural depressions for storage of storm water runoff is:
Recommended
Not recommended
14. Which of the following is not a recommended planning consideration?
Maximize parking footprints.
Reduce setbacks and frontages.
Reduce the radius of cul-de-sacs.
Use fewer or alternative cul-de-sacs.
15. A primary focus of urban and suburban storm water management planning is to minimize the frequency and severity of flooding. This is generally done by _______________ peak discharges from new development.
Increasing
Evaluating
Reducing
Counting
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