The GATE Grind

GATE 2022 AG – Question 18

Soil and Water Conservation Engineering · Hydrology · 1 mark · Multiple choice

The shape of the falling limb of a hydrograph depends on ______.

  1. Basin and storm characteristics
  2. Storm characteristics only
  3. Basin characteristics only
  4. Direction of rainfall only

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Correct answer: (C) Basin characteristics only

Explanation

After rainfall excess has ended, recession reflects release from catchment storage. In the standard hydrograph decomposition, its characteristic shape therefore depends on **basin characteristics, C**, including storage and drainage properties. Storm properties primarily control the rising limb and peak.

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