Allied & ICAR Exam Bank • ALLIED_1246 MCQ • 1 Mark

Section 5: Irrigation and Drainage Engineering

Agricultural Drainage and Salinity

Subtopic: Drainage Well Pumping (Bio-drainage)

Question Statement:

In waterlogged canal command areas, 'Bio-drainage' refers to lowering the shallow water table using:

Options:

  • (A) High-transpiring deep-rooted tree plantations (such as *Eucalyptus tereticornis*)
  • (B) Bacterial digestion of underground water
  • (C) Subsurface drainage plastic tiles
  • (D) Electro-osmotic pumps

Answer Key:

A

Step-by-Step Solution & Explanation

Bio-drainage harnesses the tremendous consumptive bio-pumping capacity of deep-rooted, fast-growing trees to extract ground water and lower waterlogged tables without disposing saline drainage effluent.
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