Soil and Water Conservation Engineering Flashcards
6 cards from real Agricultural/Bioengineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Soil and Water Conservation Engineering flashcards as text
Which dimensionless number is used to predict whether channel flow is laminar or turbulent?
Answer: Reynolds number
The Reynolds number compares inertial forces to viscous forces and determines the flow regime.
In terracing, the term 'terrace interval' refers to:
Answer: Vertical or horizontal distance between consecutive terraces
Terrace interval is the vertical or horizontal spacing between adjacent terraces on a slope.
The SCS curve number method is used to estimate:
Answer: Direct runoff from rainfall
The SCS (now NRCS) curve number method relates rainfall to direct runoff based on land use and soil type.
Which soil texture has the greatest water-holding capacity?
Answer: Clay soil
Clay soils have fine particles with large total surface area and small pore spaces, enabling high water retention.
Check dams are installed in gullies primarily to:
Answer: Trap sediment and reduce gully head advance
Check dams reduce flow energy, trap sediment, and slow the upstream advance of gully erosion.
The Penman-Monteith equation is used to calculate:
Answer: Reference evapotranspiration
The Penman-Monteith equation combines energy balance and aerodynamic factors to estimate reference ET.