Allied & ICAR Exam Bank • ALLIED_0438 MCQ • 1 Mark

Section 4: Soil and Water Conservation Engineering

Hydrology and Runoff

Subtopic: Hydrograph Analysis and Watershed Routing

Question Statement:

The recession limb of a flood hydrograph represents:

Options:

  • (A) Depletion of water stored in the channel network and subsurface baseflow drainage
  • (B) Direct precipitation falling on the channel surface only
  • (C) Surface runoff during peak rainfall
  • (D) Infiltration capacity recovery during rainfall

Answer Key:

A

Step-by-Step Solution & Explanation

After rainfall stops and surface runoff ends at the point of inflection, the recession limb represents drainout of channel storage and ground water exfiltration.
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