CPESC Exam Questions and Answers|Latest Update

CPESC Exam Questions and Answers|Latest
Update

The rate of wearing away of natural (earth) and unnatural (embankment, slope protection,

structures, etc.) surfaces by the action of external forces. Erosion Rate




Erosion rate includes all erosion from sheet, rill, gully, channel, and slope failure What

does erosion rate include?




The amount of sediment reaching or passing a point of interest in a given period of time.

Sediment Yield




Sediment yield includes all erosion minus sediment that is deposited before it reaches the point

of interest What does sediment yield include?




Sheet and rill erosion + other erosion Gross Erosion




Revised Universal Soil Loss Equation What does RUSLE stand for

, -predicts longtime average annual soil loss What does the RULSE Equation predict




Sheet and rill erosion only What does the RUSLE Equation predict soil loss from




tons/acre/year RUSLE units




A=R*K*LS*C*P RUSLE equation




Soil loss (ton/acre/year) A (RUSLE)




Rainfall runoff erosivity factor R (RUSLE)




Soil Erodibily Factor K (RUSLE)




Slope length factor L (RUSLE)




Slope steepness factor S (RUSLE)