CESSWI exam questions with answers
Erosion - CORRECT ANSWERS ✔✔process in which, by the
actions of wind and/or water, soil particles detached and
transported
Sediment - CORRECT ANSWERS ✔✔eroded material
suspended in wind or water
Sedimentation - CORRECT ANSWERS ✔✔deposition of
eroded material
Types of Erosion - CORRECT ANSWERS ✔✔splash
sheet
rill
gully
channel
Splash erosion - CORRECT ANSWERS ✔✔raindrop impact
energy is enough to dislodge surface sediments
sheet erosion - CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔as flow
concentrates, small channels begin to form in the soil
surface
Gully Erosion - CORRECT ANSWERS ✔✔Formed when
runoff cuts rills deeper and wider or when flows from
several rills come together and form a large channels
Channel Erosion - CORRECT ANSWERS ✔✔may become
unstable due to increased flows or changes in upstream
sediment load
Natural erosion - CORRECT ANSWERS ✔✔generally
considered due to the influences of climate on the surface
of the earth
Accelerated erosion - CORRECT ANSWERS ✔✔natural
erosion plus human activities
What problems can accelerated erosion cause? -
CORRECT ANSWERS ✔✔Unrestricted development
removal of surface cover
,increased imperviousness
poor stewardship
Problems associated with construction related erosion -
CORRECT ANSWERS ✔✔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 - CORRECT
ANSWERS ✔✔destruction of spawning areas, food
sources, habitat
direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
reduction of water storage capacities
Suspended material - CORRECT ANSWERS ✔✔sediment
can affect light penetration, channel stability, fisheries
and habitat
, Name Off stream damages - CORRECT ANSWERS
✔✔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? - CORRECT ANSWERS ✔✔Urbanization
and development
priority pollutants include - CORRECT ANSWERS
✔✔nutrients
pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
Clean Water Act (CWA) - CORRECT ANSWERS ✔✔Federal
Water Pollution Control Act enacted to restore and
maintain the chemical, physical and biological integrity of
the waters of the US
Erosion - CORRECT ANSWERS ✔✔process in which, by the
actions of wind and/or water, soil particles detached and
transported
Sediment - CORRECT ANSWERS ✔✔eroded material
suspended in wind or water
Sedimentation - CORRECT ANSWERS ✔✔deposition of
eroded material
Types of Erosion - CORRECT ANSWERS ✔✔splash
sheet
rill
gully
channel
Splash erosion - CORRECT ANSWERS ✔✔raindrop impact
energy is enough to dislodge surface sediments
sheet erosion - CORRECT ANSWERS ✔✔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 - CORRECT ANSWERS ✔✔as flow
concentrates, small channels begin to form in the soil
surface
Gully Erosion - CORRECT ANSWERS ✔✔Formed when
runoff cuts rills deeper and wider or when flows from
several rills come together and form a large channels
Channel Erosion - CORRECT ANSWERS ✔✔may become
unstable due to increased flows or changes in upstream
sediment load
Natural erosion - CORRECT ANSWERS ✔✔generally
considered due to the influences of climate on the surface
of the earth
Accelerated erosion - CORRECT ANSWERS ✔✔natural
erosion plus human activities
What problems can accelerated erosion cause? -
CORRECT ANSWERS ✔✔Unrestricted development
removal of surface cover
,increased imperviousness
poor stewardship
Problems associated with construction related erosion -
CORRECT ANSWERS ✔✔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 - CORRECT
ANSWERS ✔✔destruction of spawning areas, food
sources, habitat
direct toxicity to wildlife
lake degradation
filling of navigation channels
impacts to commercial fisheries
reduction of water storage capacities
Suspended material - CORRECT ANSWERS ✔✔sediment
can affect light penetration, channel stability, fisheries
and habitat
, Name Off stream damages - CORRECT ANSWERS
✔✔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? - CORRECT ANSWERS ✔✔Urbanization
and development
priority pollutants include - CORRECT ANSWERS
✔✔nutrients
pathogens
heavy metals
toxics
sediment
salts
detergents
hydro carbons
Clean Water Act (CWA) - CORRECT ANSWERS ✔✔Federal
Water Pollution Control Act enacted to restore and
maintain the chemical, physical and biological integrity of
the waters of the US
