CESSWI Exam Questions and Answers
100% Pass
Process in which, by action of wind and/or water, soil particles are detached and
transported. - ✔✔Erosion
Eroded Material suspended in wind or water - ✔✔Sediment
Deposition of eroded material - ✔✔Sedimentation
Types of Erosion - ✔✔splash, sheet, rill, gully, channel
Raindrop impact energy dislodges surface sediments - ✔✔splash erosion
Rain splash detaching soil particles, lifting them up and removing them by shallow
"sheets" of water flowing down the sloped soil surface. - ✔✔Sheet erosion
As flow concentrates, small channels begin to form in the soil surface - ✔✔Rill erosion
Formed when runoff cuts rills deeper and wider or when flows from several rills come
together and form a large channel - ✔✔Gully erosion
May become unstable due to increased flows or changes in upstream sediment load. -
✔✔Channel erosion
Katelyn Whitman, All Rights Reserved © 2025 1
,Erosion via influences of climate on the surface of the Earth. - ✔✔Natural erosion
natural erosion plus human activity - ✔✔accelerated erosion
Problems associated with construction related to erosion - ✔✔- Problems for downslope
property owners
- nuisance problems on streets
- clog streams and storm drains
- increased turbidity downstream
- cover sensitive habitat with sediment
What problems can accelerated erosion cause? - ✔✔- unrestricted development
- removal of surface cover
- increased imperviousness
- poor stewardship
Identify instream damages of sediment - ✔✔- destruction of spawning areas, food
sources, habitat
- direct toxicity to wildlife
- lake degradation
filling of navigation channels
Katelyn Whitman, All Rights Reserved © 2025 2
, Impact to commercial fisheries - ✔✔reduction of water storage capacities
Sediment can affect light penetration, channel stability, fisheries and habitat -
✔✔Suspended material
name stream damages: - ✔✔increased flood hazard
increased water treatment const
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
what has increased the amount of impervious surface in our watersheds? -
✔✔urbanization and development
List priority pollutants - ✔✔nutrients
pathogens
heavy materials
toxics
sediment
salts
detergents
hydro carbons
Katelyn Whitman, All Rights Reserved © 2025 3
100% Pass
Process in which, by action of wind and/or water, soil particles are detached and
transported. - ✔✔Erosion
Eroded Material suspended in wind or water - ✔✔Sediment
Deposition of eroded material - ✔✔Sedimentation
Types of Erosion - ✔✔splash, sheet, rill, gully, channel
Raindrop impact energy dislodges surface sediments - ✔✔splash erosion
Rain splash detaching soil particles, lifting them up and removing them by shallow
"sheets" of water flowing down the sloped soil surface. - ✔✔Sheet erosion
As flow concentrates, small channels begin to form in the soil surface - ✔✔Rill erosion
Formed when runoff cuts rills deeper and wider or when flows from several rills come
together and form a large channel - ✔✔Gully erosion
May become unstable due to increased flows or changes in upstream sediment load. -
✔✔Channel erosion
Katelyn Whitman, All Rights Reserved © 2025 1
,Erosion via influences of climate on the surface of the Earth. - ✔✔Natural erosion
natural erosion plus human activity - ✔✔accelerated erosion
Problems associated with construction related to erosion - ✔✔- Problems for downslope
property owners
- nuisance problems on streets
- clog streams and storm drains
- increased turbidity downstream
- cover sensitive habitat with sediment
What problems can accelerated erosion cause? - ✔✔- unrestricted development
- removal of surface cover
- increased imperviousness
- poor stewardship
Identify instream damages of sediment - ✔✔- destruction of spawning areas, food
sources, habitat
- direct toxicity to wildlife
- lake degradation
filling of navigation channels
Katelyn Whitman, All Rights Reserved © 2025 2
, Impact to commercial fisheries - ✔✔reduction of water storage capacities
Sediment can affect light penetration, channel stability, fisheries and habitat -
✔✔Suspended material
name stream damages: - ✔✔increased flood hazard
increased water treatment const
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
what has increased the amount of impervious surface in our watersheds? -
✔✔urbanization and development
List priority pollutants - ✔✔nutrients
pathogens
heavy materials
toxics
sediment
salts
detergents
hydro carbons
Katelyn Whitman, All Rights Reserved © 2025 3
