Allied & ICAR Exam Bank • ALLIED_1165 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Soil Erosion Mechanics and USLE

Subtopic: Water Erosion Stages

Question Statement:

The chronological sequence of water erosion processes occurring on unprotected sloping arable land is:

Options:

  • (A) Splash erosion \to Sheet erosion \to Rill erosion \to Gully erosion
  • (B) Sheet erosion \to Splash erosion \to Gully erosion \to Rill erosion
  • (C) Gully erosion \to Rill erosion \to Sheet erosion \to Splash erosion
  • (D) Rill erosion \to Sheet erosion \to Splash erosion \to Stream bank erosion

Answer Key:

A

Step-by-Step Solution & Explanation

Erosion initiates with raindrop impact (splash), develops into uniform thin layer transport (sheet), concentrates into micro-channels (rills), and eventually deepens into untillable incised gullies.
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