CESSWI Exam Questions and Answers
100% Pass
Erosion - ✔✔process in which, by the actions of wind and/or water, soil
particles detached and transported
Sediment - ✔✔eroded material suspended in wind or water
Sedimentation - ✔✔deposition of eroded material
Types of Erosion - ✔✔splash
sheet
rill
gully
channel
1
100% Pass Guarantee Katelyn Whitman, All Rights
,Splash erosion - ✔✔raindrop impact energy is enough to dislodge surface
sediments
sheet erosion - ✔✔caused by rain splash detaching soil particles lifting
them up and removing them by shallow "sheets" of water flowing down
the sloped soil surface
Rill Erosion - ✔✔as flow concentrates, small channels begin to form in the
soil surface
Gully Erosion - ✔✔Formed when runoff cuts rills deeper and wider or
when flows from several rills come together and form a large channels
Channel Erosion - ✔✔may become unstable due to increased flows or
changes in upstream sediment load
Natural erosion - ✔✔generally considered due to the influences of climate
on the surface of the earth
Accelerated erosion - ✔✔natural erosion plus human activities
What problems can accelerated erosion cause? - ✔✔Unrestricted
development
2
100% Pass Guarantee Katelyn Whitman, All Rights
,removal of surface cover
increased imperviousness
poor stewardship
Problems associated with construction related erosion - ✔✔problems for
down slope property owners
nuisance problems on streets
clog streams and storm drains
increased turbidity downstream
cover sensitive habitat with sediment
Identify instream damages of sediment - ✔✔destruction of spawning areas,
food sources, habitat
direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
3
100% Pass Guarantee Katelyn Whitman, All Rights
, reduction of water storage capacities
Suspended material - ✔✔sediment can affect light penetration, channel
stability, fisheries and habitat
Name Off stream damages - ✔✔Increased flood hazards
increased water treatment costs
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
What has increased the amount of impervious surface in our watersheds? -
✔✔Urbanization and development
priority pollutants include - ✔✔nutrients
pathogens
heavy metals
toxics
sediment
salts
4
100% Pass Guarantee Katelyn Whitman, All Rights
100% Pass
Erosion - ✔✔process in which, by the actions of wind and/or water, soil
particles detached and transported
Sediment - ✔✔eroded material suspended in wind or water
Sedimentation - ✔✔deposition of eroded material
Types of Erosion - ✔✔splash
sheet
rill
gully
channel
1
100% Pass Guarantee Katelyn Whitman, All Rights
,Splash erosion - ✔✔raindrop impact energy is enough to dislodge surface
sediments
sheet erosion - ✔✔caused by rain splash detaching soil particles lifting
them up and removing them by shallow "sheets" of water flowing down
the sloped soil surface
Rill Erosion - ✔✔as flow concentrates, small channels begin to form in the
soil surface
Gully Erosion - ✔✔Formed when runoff cuts rills deeper and wider or
when flows from several rills come together and form a large channels
Channel Erosion - ✔✔may become unstable due to increased flows or
changes in upstream sediment load
Natural erosion - ✔✔generally considered due to the influences of climate
on the surface of the earth
Accelerated erosion - ✔✔natural erosion plus human activities
What problems can accelerated erosion cause? - ✔✔Unrestricted
development
2
100% Pass Guarantee Katelyn Whitman, All Rights
,removal of surface cover
increased imperviousness
poor stewardship
Problems associated with construction related erosion - ✔✔problems for
down slope property owners
nuisance problems on streets
clog streams and storm drains
increased turbidity downstream
cover sensitive habitat with sediment
Identify instream damages of sediment - ✔✔destruction of spawning areas,
food sources, habitat
direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
3
100% Pass Guarantee Katelyn Whitman, All Rights
, reduction of water storage capacities
Suspended material - ✔✔sediment can affect light penetration, channel
stability, fisheries and habitat
Name Off stream damages - ✔✔Increased flood hazards
increased water treatment costs
decreased capacity in conveyance facilities
higher infrastructure maintenance costs
What has increased the amount of impervious surface in our watersheds? -
✔✔Urbanization and development
priority pollutants include - ✔✔nutrients
pathogens
heavy metals
toxics
sediment
salts
4
100% Pass Guarantee Katelyn Whitman, All Rights
