Erosion And Sediment Control Inspector Exam Review Correct 100%

Once final grade is reached, how many days to seed? {Ans: 7 days for permanent vegetation}What are 4 erosive forces? {Ans: wind water ice gravity}How are you eligible to take the exam? {Ans: Take a DEQ training class OR DEQ 800 hour work experience form}What is K factor? {Ans: the susceptibility of a particular soil to erosion developed by permeability, soil texture, soil structure, and organic matter content low K factor is low erodibility (0-0.23), and high is (0.37 +)}Name and define 5 stages of soil erosion. {Ans: Raindrop- 90% of total soil erosion Sheet- the soils ability to infiltrate water is exceeded and it runs in sheet flow (about 100 ft before concentrating), how sediment gets transported Rill- when sheet flow begins to concentrate, velocity and turbulence increase, but easily repaired Gully-when rills converge, larger than rill and usually requires heavy equipment to repair Channel- large volume of water increases the gully, vertical sides are observed or for an existing streambed when structural integrity is destroyed}How is a slope percentage calculated? {Ans: rise/run horizontal distance / vertical distance closer number to 1 in a ratio= higher percentage=steeper slope}