CERTIFIED STORM WATER OPERATOR
VALUATION EXAM WITH ALL ANSWERS
Erosion is the process where soil particles are ______________ or ____________ and
put in motion. (Unit 1) - Answer--Dislodged; detached
Sedimentation is the process whereby detached particles are ___________________
elsewhere. (Unit 1) - Answer--Deposited
Sediment is solid ________________ or _______________ particulate matter that has
been removed from its site of origin by ___________, _____________, or
______________ and deposited elsewhere. (Unit 1) - Answer--Mineral; organic; water;
wind; gravity
Accelerated erosion is a speeding up of erosion due to ___________activity. (Unit 1) -
Answer--Human
Major erosive forces are water and ___________. (Unit 1) - Answer--Wind
In some areas, more soil is lost from ______________ erosion than from water erosion.
(Unit 1) - Answer--Wind
The effects of _____________ erosion are usually more visible than _____________
erosion. (Unit 1) - Answer--Water; wind
The three categories of overland erosion are: (Unit 1) - Answer--Sheet, rill, gully
, _____________ erosion is the removal of a uniform layer of soil from rain-splash and
storm water runoff. (Unit 1) - Answer--Sheet
The ____________ of erosion defines the difference between rills and gullies. (Unit 1) -
Answer--Depth
The physical factors affecting erosion are: (Unit 1) - Answer--Climate, vegetative cover,
soils, slope.
Erosion and sedimentation may cause:
-Loss of ___________ _______________
-__________________ damage to roads, buildings or bridges.
-___________________, resulting in reduction of fish _______________ _________,
reduced _____________ or _______________ _______________ capacity, and
______________ costs to maintain ______________.
-_________________ loading. (Unit 1) - Answer--- fertile topsoil
- Structural
- Deposition; spawning areas; channel; storm drain; increased; turbidity
- Pollutant
The climatic factors that strongly influence erosion and runoff are _______________
amount, _______________, and ________________. (Unit 1) - Answer--Rainfall,
frequency, intensity.
Soil properties influencing erodibility include: (Unit 1) - Answer--Texture, structure,
cohesion, natural drainage class
Texture refers to the ___________ or _____________________ of ____________ of
soil particles in soil. (Unit 1) - Answer--Size; combination of sizes
Structure refers to the degree to which individual soil particles _____________ to each
other. (Unit 1) - Answer--Adhere
Slope _________________, _____________________, and ___________________
affect erodibility. (Unit 1) - Answer--Steepness, length, and roughness.
Sediment deposition occurs when soil-laden wind or water ____________ enough to
allow the soil particles to settle out. (Unit 1) - Answer--Slows
VALUATION EXAM WITH ALL ANSWERS
Erosion is the process where soil particles are ______________ or ____________ and
put in motion. (Unit 1) - Answer--Dislodged; detached
Sedimentation is the process whereby detached particles are ___________________
elsewhere. (Unit 1) - Answer--Deposited
Sediment is solid ________________ or _______________ particulate matter that has
been removed from its site of origin by ___________, _____________, or
______________ and deposited elsewhere. (Unit 1) - Answer--Mineral; organic; water;
wind; gravity
Accelerated erosion is a speeding up of erosion due to ___________activity. (Unit 1) -
Answer--Human
Major erosive forces are water and ___________. (Unit 1) - Answer--Wind
In some areas, more soil is lost from ______________ erosion than from water erosion.
(Unit 1) - Answer--Wind
The effects of _____________ erosion are usually more visible than _____________
erosion. (Unit 1) - Answer--Water; wind
The three categories of overland erosion are: (Unit 1) - Answer--Sheet, rill, gully
, _____________ erosion is the removal of a uniform layer of soil from rain-splash and
storm water runoff. (Unit 1) - Answer--Sheet
The ____________ of erosion defines the difference between rills and gullies. (Unit 1) -
Answer--Depth
The physical factors affecting erosion are: (Unit 1) - Answer--Climate, vegetative cover,
soils, slope.
Erosion and sedimentation may cause:
-Loss of ___________ _______________
-__________________ damage to roads, buildings or bridges.
-___________________, resulting in reduction of fish _______________ _________,
reduced _____________ or _______________ _______________ capacity, and
______________ costs to maintain ______________.
-_________________ loading. (Unit 1) - Answer--- fertile topsoil
- Structural
- Deposition; spawning areas; channel; storm drain; increased; turbidity
- Pollutant
The climatic factors that strongly influence erosion and runoff are _______________
amount, _______________, and ________________. (Unit 1) - Answer--Rainfall,
frequency, intensity.
Soil properties influencing erodibility include: (Unit 1) - Answer--Texture, structure,
cohesion, natural drainage class
Texture refers to the ___________ or _____________________ of ____________ of
soil particles in soil. (Unit 1) - Answer--Size; combination of sizes
Structure refers to the degree to which individual soil particles _____________ to each
other. (Unit 1) - Answer--Adhere
Slope _________________, _____________________, and ___________________
affect erodibility. (Unit 1) - Answer--Steepness, length, and roughness.
Sediment deposition occurs when soil-laden wind or water ____________ enough to
allow the soil particles to settle out. (Unit 1) - Answer--Slows
