CPESC Exam| Complete Exam Ques ons and
CORRECT Answers| (2026 update) Assured
success| grade A+
Erosion - Answer-The process in which, by the ac ons of wind or water, soil par cles are detached and
transported.
Sediment - Answer-Eroded material suspended in wind or water.
Sedimenta on - Answer-The deposi on of eroded material.
Receiving Waters - Answer-What bears the impact of quan ty and quality degrada on from erosion?
Splash Erosion - Answer-Raindrop impact energy is enough to dislodge surface sediment.
Sheet Erosion - Answer-Rain splash detaching soil par cles li ing them up and removing them by
shallow "sheets" of water flowing down the sloped soil surface.
Rill Erosion - Answer-As flow concentrates, small channels begin to form in the soil surface.
Gully Erosion - Answer-Runoff cuts rills deeper and wider or several rills join to form a large channel.
Channel Erosion - Answer-Channels become unstable due to increased flows or changes in upstream
sediment load.
Slope Failure - Answer-Can happen when erosion le una ended.
, Natural Erosion - Answer-Erosion due to the influence of clima c forces on the surface of the earth.
Accelerated Erosion - Answer-Natural Erosion + Human Ac vi es
What can accelerate erosion? - Answer-1. Unrestricted development
2. Removal of surface cover
3. Increased Imperviousness
4. Poor stewardship
Construc on related erosion can cause what problems? - Answer-1. problems for downslope property
owners
2. problems on adjacent streets
3. clog streams and storm drains
4. cause turbidity blumes in downstream water bodies
5. cumula ve toll on the environment can be devasta ng
Pollutant exports during construc on - Answer-Nutrients, pes cides, bacteria, toxic substances, etc.
transported with eroded sediment
Uncontrolled construc on site sediment loads exceed hundreds of tons per acre per year
Damages to streams caused by erosion - Answer-1. Destruc on of spawning areas, food sources, habitat
2. Direct toxicity to wildlife
3. Lake degrada on
4. Filling of channels
CORRECT Answers| (2026 update) Assured
success| grade A+
Erosion - Answer-The process in which, by the ac ons of wind or water, soil par cles are detached and
transported.
Sediment - Answer-Eroded material suspended in wind or water.
Sedimenta on - Answer-The deposi on of eroded material.
Receiving Waters - Answer-What bears the impact of quan ty and quality degrada on from erosion?
Splash Erosion - Answer-Raindrop impact energy is enough to dislodge surface sediment.
Sheet Erosion - Answer-Rain splash detaching soil par cles li ing them up and removing them by
shallow "sheets" of water flowing down the sloped soil surface.
Rill Erosion - Answer-As flow concentrates, small channels begin to form in the soil surface.
Gully Erosion - Answer-Runoff cuts rills deeper and wider or several rills join to form a large channel.
Channel Erosion - Answer-Channels become unstable due to increased flows or changes in upstream
sediment load.
Slope Failure - Answer-Can happen when erosion le una ended.
, Natural Erosion - Answer-Erosion due to the influence of clima c forces on the surface of the earth.
Accelerated Erosion - Answer-Natural Erosion + Human Ac vi es
What can accelerate erosion? - Answer-1. Unrestricted development
2. Removal of surface cover
3. Increased Imperviousness
4. Poor stewardship
Construc on related erosion can cause what problems? - Answer-1. problems for downslope property
owners
2. problems on adjacent streets
3. clog streams and storm drains
4. cause turbidity blumes in downstream water bodies
5. cumula ve toll on the environment can be devasta ng
Pollutant exports during construc on - Answer-Nutrients, pes cides, bacteria, toxic substances, etc.
transported with eroded sediment
Uncontrolled construc on site sediment loads exceed hundreds of tons per acre per year
Damages to streams caused by erosion - Answer-1. Destruc on of spawning areas, food sources, habitat
2. Direct toxicity to wildlife
3. Lake degrada on
4. Filling of channels
