Podcast
Questions and Answers
What is the minimum recommended width for a waterway channel bottom?
What is the minimum recommended width for a waterway channel bottom?
- 3m (correct)
- 2m
- 5m
- 4m
What type of grasses are not suitable for waterways?
What type of grasses are not suitable for waterways?
- Tall grasses (correct)
- Dense, tough, and long-lived grasses
- Shrubs
- Perennial grasses
What determines the permissible velocity of a waterway?
What determines the permissible velocity of a waterway?
- Slope of the waterway
- Density of vegetation (correct)
- Channel roughness
- Size of the waterway
What is the minimum recommended depth for a waterway?
What is the minimum recommended depth for a waterway?
What is the design velocity?
What is the design velocity?
What factor does NOT affect the volume of runoff?
What factor does NOT affect the volume of runoff?
What is an advantage of vegetated waterways in terms of maintenance?
What is an advantage of vegetated waterways in terms of maintenance?
What is the basis for vegetated waterway design, except in flood spillways for dams?
What is the basis for vegetated waterway design, except in flood spillways for dams?
What is a potential benefit of vegetated waterways for wildlife?
What is a potential benefit of vegetated waterways for wildlife?
What is a function of vegetated waterways in terms of soil erosion?
What is a function of vegetated waterways in terms of soil erosion?
How do vegetated waterways improve water quality?
How do vegetated waterways improve water quality?
What is a disadvantage of vegetated waterways in terms of land use?
What is a disadvantage of vegetated waterways in terms of land use?
What is the primary factor that determines the roughness of a channel?
What is the primary factor that determines the roughness of a channel?
What is the permissible velocity for a channel lined with very dense vegetation on a slope of 0-5%?
What is the permissible velocity for a channel lined with very dense vegetation on a slope of 0-5%?
What is the main purpose of using vegetation in channel design?
What is the main purpose of using vegetation in channel design?
How does the depth of flow affect the roughness coefficient?
How does the depth of flow affect the roughness coefficient?
What is the average length of very tall vegetation?
What is the average length of very tall vegetation?
What is the primary factor that influences the resistance of flow in a channel?
What is the primary factor that influences the resistance of flow in a channel?
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