Field irrigation efficiency is the ratio of water stored in the crop root zone to the water:
Correct answer: D. Delivered to the field
- A. Pumped from the source
- B. Returned to the river
- C. Lost through evaporation
- D. Delivered to the field
Explanation
Field irrigation efficiency measures how much of the water delivered to the field is stored in the effective root zone. It does not use the total pumped volume unless that volume is exactly the field delivery.
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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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