Soil Erosion & Sedimentation Control Training - Unit 1

29 Questions | Total Attempts: 293

SettingsSettingsSettings
Please wait...
Soil Quizzes & Trivia

Study exam for the Soi Erosion and Sedimentation Control Training - Unit 1


Questions and Answers
  • 1. 
    Erosion and sedimentation result in loss of  ________________   _______________ .
    • A. 

      Vegetative cover

    • B. 

      Fertile topsoil

    • C. 

      Slope steepness

    • D. 

      Surface roughness

  • 2. 
    Erosion and sedimentation result in _______________ ditches and storm sewers.
    • A. 

      Muddy

    • B. 

      Gully

    • C. 

      Clogged

    • D. 

      Erosion

  • 3. 
    Erosion and sedimentation result in muddy or _____________ lakes and streams.
    • A. 

      Murky

    • B. 

      Cloudy

    • C. 

      Rill

    • D. 

      Turbid

  • 4. 
    Erosion and sedimentation result in damage to _______________ and _________ life.
    • A. 

      Plant, animal

    • B. 

      Bird, insect

    • C. 

      Vegetative, insect

    • D. 

      Insect, bird

  • 5. 
    Erosion and sedimentation result in ____________ damage to roads and buildings.
    • A. 

      Minor

    • B. 

      Characteristics

    • C. 

      Structural

    • D. 

      Major

  • 6. 
    Erosion is the process where soil particles are ___________ or ________ and put in motion.
    • A. 

      Dislodged

    • B. 

      Deposited

    • C. 

      Eroded

    • D. 

      Detached

    • E. 

      Displaced

  • 7. 
    Sedimentation is the process whereby detached particles are _____________ elsewhere.
    • A. 

      Dislodged

    • B. 

      Deposited

    • C. 

      Displaced

    • D. 

      Detached

  • 8. 
    Sediment is the product of _______________.
    • A. 

      Dislodgement

    • B. 

      Sheeting

    • C. 

      Wind

    • D. 

      Erosion

  • 9. 
    The two types of erosion are ___________  and  ____________.
    • A. 

      Accelerated

    • B. 

      Wind

    • C. 

      Water

    • D. 

      Sheet

    • E. 

      Geologic

  • 10. 
    Accelerated erosion is a speeding up of erosion due to ____________  activity.
    • A. 

      Construction

    • B. 

      Wind

    • C. 

      Water

    • D. 

      Human

  • 11. 
    Major erosive forces are water and ____________.
    • A. 

      Wind

    • B. 

      Human

    • C. 

      Climate

    • D. 

      Geologic

  • 12. 
    In some areas, more soil is lost from __________ erosion that from water erosion.
    • A. 

      Accelerated

    • B. 

      Sheet

    • C. 

      Wind

    • D. 

      Geologic

  • 13. 
    The effects of _____________  erosion are usually more visible the  ___________ erosion.
    • A. 

      Rill

    • B. 

      Gully

    • C. 

      Water

    • D. 

      Wind

    • E. 

      Sheet

  • 14. 
    The three categories of overland erosion are:  ____________,  ____________,  and ____________.
    • A. 

      Geologic, accelerated, animal

    • B. 

      Sheet, water, gully

    • C. 

      Animal, wind, water

    • D. 

      Sheet, rill, gully

  • 15. 
    ______________  erosion is the removal of a uniform layer of soil that generally goes unnoticed.
    • A. 

      Sheet

    • B. 

      Rill

    • C. 

      Gully

    • D. 

      Wind

  • 16. 
    The __________  of erosion defines the difference between rills and gullies.
    • A. 

      Type

    • B. 

      Length

    • C. 

      Amount

    • D. 

      Depth

  • 17. 
    The four physical factors affecting erosion are:
    • A. 

      Vegetative cover

    • B. 

      Depth of topsoil

    • C. 

      Climate

    • D. 

      Slope characteristics

    • E. 

      Soil

  • 18. 
    The climate factors that influence erosion are ___________  amount, _____________, and  ___________.
    • A. 

      Precipitation, density, frequency

    • B. 

      Precipitation, wind, intensity

    • C. 

      Rainfall, wind, snow

    • D. 

      Rainfall, intensity, frequency

  • 19. 
    Organic matter reduces erosion and off-site sedimentation by (choose 3):
    • A. 

      Creating a barrier to slow runoff

    • B. 

      Soaking up the rain water

    • C. 

      Shielding the soil from the impact of rain

    • D. 

      Lining ditches to prevent loss

    • E. 

      Providing essentail nutrients for plant growth

  • 20. 
    Soil properties influencing erodibility include:
    • A. 

      Size, shape, density

    • B. 

      Texture, structure, cohesiveness

    • C. 

      Size, structure, texture

    • D. 

      Texture, size, cohesiveness

  • 21. 
    Texture refers to the ___________ of the soil particles.
    • A. 

      Structure

    • B. 

      Density

    • C. 

      Shape

    • D. 

      Size

  • 22. 
    Structure refers to how soil particles are ___________  together.
    • A. 

      Stuck

    • B. 

      Forced

    • C. 

      Clumped

    • D. 

      Deposited

  • 23. 
    Slope ___________, ____________, and ____________ affect erodibility.
    • A. 

      Steepness, length, roughness

    • B. 

      Size, shape, density

    • C. 

      Texture, structure, cohesiveness

    • D. 

      Length, shape, roughness

  • 24. 
    Sediment deposition occurs when soil-laden water ________ enough to allow the soil particle to settle out.
    • A. 

      Runs

    • B. 

      Slows

    • C. 

      Evaporates

    • D. 

      Moves

  • 25. 
    The _________, _________, and _________ of the transported particles influence the rate at which they settle out.
    • A. 

      Texture, structure, cohesiveness

    • B. 

      Steepness, length, roughness

    • C. 

      Texture, size, roughness

    • D. 

      Size, shape, density