Allied & ICAR Exam Bank • ALLIED_0493 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Irrigation Efficiencies

Subtopic: Irrigation Efficiencies

Question Statement:

Water Storage Efficiency $\eta_s$ indicates:

Options:

  • (A) How adequately the root zone moisture deficit was replenished to field capacity by the irrigation
  • (B) Canal seepage losses
  • (C) Evaporation losses from water surface
  • (D) Uniformity of water depth across the field

Answer Key:

A

Step-by-Step Solution & Explanation

Storage efficiency $\eta_s = (W_s / W_n) \times 100$, measuring the fraction of required soil moisture deficit $W_n$ successfully stored.
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