CPESC Exam questions with correct answers
The process in which, by the actions of wind or water, soil particles are detached and transported. - correct answer Erosion
Eroded material suspended in wind or water. - correct answer Sediment
The deposition of eroded material. - correct answer Sedimentation
What bears the impact of quantity and quality degradation from erosion? - correct answer Receiving Waters
Raindrop impact energy is enough to dislodge surface sediment. - correct answer Splash Erosion
Rain splash detaching soil particles lifting them up and removing them by shallow "sheets" of water flowing down the sloped soil surface. - correct answer Sheet Erosion
As flow concentrates, small channels begin to form in the soil surface. - correct answer Rill Erosion
Runoff cuts rills deeper and wider or several rills join to form a large channel. - correct answer Gully Erosion
Channels become unstable due to increased flows or changes in upstream sediment load. - correct answer Channel Erosion
Can happen when erosion left unattended. - correct answer Slope Failure Erosion due to the influence of climatic forces on the surface of the earth. - correct answer Natural Erosion
Natural Erosion + Human Activities - correct answer Accelerated Erosion
1. Unrestricted development
2. Removal of surface cover
3. Increased Imperviousness
4. Poor stewardship - correct answer What can accelerate erosion?
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. cumulative toll on the environment can be devastating - correct answer Construction related erosion can cause what problems?
Nutrients, pesticides, bacteria, toxic substances, etc. transported with eroded sediment Uncontrolled construction site sediment loads exceed hundreds of tons per acre per year - correct answer Pollutant exports during construction
1. Destruction of spawning areas, food sources, habitat
2. Direct toxicity to wildlife
3. Lake degradation
4. Filling of channels
5. Commercial fishery impacts
6. Reduced water storage capacity - correct answer Damages to streams caused by erosion
The process in which, by the actions of wind or water, soil particles are detached and transported. - correct answer Erosion
Eroded material suspended in wind or water. - correct answer Sediment
The deposition of eroded material. - correct answer Sedimentation
What bears the impact of quantity and quality degradation from erosion? - correct answer Receiving Waters
Raindrop impact energy is enough to dislodge surface sediment. - correct answer Splash Erosion
Rain splash detaching soil particles lifting them up and removing them by shallow "sheets" of water flowing down the sloped soil surface. - correct answer Sheet Erosion
As flow concentrates, small channels begin to form in the soil surface. - correct answer Rill Erosion
Runoff cuts rills deeper and wider or several rills join to form a large channel. - correct answer Gully Erosion
Channels become unstable due to increased flows or changes in upstream sediment load. - correct answer Channel Erosion
Can happen when erosion left unattended. - correct answer Slope Failure Erosion due to the influence of climatic forces on the surface of the earth. - correct answer Natural Erosion
Natural Erosion + Human Activities - correct answer Accelerated Erosion
1. Unrestricted development
2. Removal of surface cover
3. Increased Imperviousness
4. Poor stewardship - correct answer What can accelerate erosion?
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. cumulative toll on the environment can be devastating - correct answer Construction related erosion can cause what problems?
Nutrients, pesticides, bacteria, toxic substances, etc. transported with eroded sediment Uncontrolled construction site sediment loads exceed hundreds of tons per acre per year - correct answer Pollutant exports during construction
1. Destruction of spawning areas, food sources, habitat
2. Direct toxicity to wildlife
3. Lake degradation
4. Filling of channels
5. Commercial fishery impacts
6. Reduced water storage capacity - correct answer Damages to streams caused by erosion
