In irrigation engineering, consumptive use of water is most closely represented by:
Correct answer: B. Evapotranspiration by the crop
- A. Deep percolation below the root zone
- B. Evapotranspiration by the crop
- C. Runoff leaving the irrigated field
- D. Water stored in the conveyance canal
Explanation
Consumptive use is the water consumed by crop growth and evaporation from the soil and plant surfaces, commonly represented by evapotranspiration. Deep percolation and runoff are losses from the root-zone water balance but are not consumptive use.
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About Hydraulics and Water Resources
Hydraulics studies fluid properties, pressure, buoyancy, continuity, Bernoulli's equation, momentum, pipe flow, open-channel flow and hydraulic machines. Water resources extends these principles to pumps, turbines, reservoirs, irrigation, floods and hydrology, while distinguishing laminar from turbulent flow and uniform from gradually varied channel flow.
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