FL Stormwater UPDATED ACTUAL Questions and CORRECT Answers

FL Stormwater UPDATED ACTUAL
Questions and CORRECT Answers
Erosion - CORRECT ANSWER -process by which land surface is worn away by the
action of wind, water, or gravity


Sedimentation - CORRECT ANSWER -settling out of soil particles transported by water
and wind


Soil erosion can be classified as either (2 types): - CORRECT ANSWER -Wind erosion
Water erosion


2 Types of Water Erosion - CORRECT ANSWER -overland erosion
Stream and channel erosion


4 processes of overland erosion - CORRECT ANSWER -1) splash/rain drop erosion
2) sheet erosion
3) rill erosion
4) gully erosion


4 principle factors influencing soil erosion - CORRECT ANSWER -1) soil characteristics
2) vegetative cover
3) topography
4) climate


Physical effects of erosion and sedimentation (list 3) - CORRECT ANSWER -Increased
flooding
Reduced hydraulic capacity of rivers/streams
Increased maintenance of stormwater systems

, Increased water treatment cost
Decreased recreational value


Biological effects of erosion and sedimentation (list 3) - CORRECT ANSWER -Reduced
light for aquatic plants
Clogs fish gills
Impairs spawning
Disrupts food chain
Blankets bottom
Suppresses aquatic life
Disrupts ecosystem


Planning the development to fit the terrain using the particular... - CORRECT ANSWER -
topography
soils
drainage patterns
natural vegetation of the site
minimize the extent of the area exposed at one time and the duration of exposure


Apply ______ practices to protect the disturbed area from off-site runoff and to protect off-site
areas from sediment damage - CORRECT ANSWER -perimeter control



Apply ______ practices to prevent excessive on-site damage - CORRECT ANSWER -
erosion control


Keep runoff velocities ___ and _____ runoff on the site. - CORRECT ANSWER -low;
retain


It is very important to stabilize disturbed areas _____ after final grading to prevent raindrop
impacts from causing erosion. - CORRECT ANSWER -immediately