Question Bank • QB_SWCE_WS_006 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Watershed Management

Subtopic: Check dams and farm ponds

Question Statement:

Which type of gully control check dam is purely temporary, flexible, and constructed across small gullies using local stakes and interwoven vegetative branches?

Options:

  • (A) Loose rock dam
  • (B) Brushwood dam
  • (C) Gabion check dam
  • (D) Masonry drop dam

Answer Key:

B

Step-by-Step Solution & Explanation

Brushwood check dams are temporary structures built using wooden posts driven into the gully bed with brush/branches interwoven between them to trap sediment and reduce runoff velocity in small gullies (< 1 to 2 m deep).
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