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GATE 2022 ES – Question 19

Water Resources and Environmental Hydraulics · Groundwater Resources · 1 mark · Multiple choice

Choose the standard decreasing order of hydraulic conductivity.

  1. Aquifer>Aquitard>Aquiclude>Aquifuge
  2. Aquifer<Aquitard<Aquiclude<Aquifuge
  3. Aquitard>Aquifer>Aquifuge>Aquiclude
  4. Aquifer>Aquiclude>Aquitard>Aquifuge

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Correct answer: (A) Aquifer>Aquitard>Aquiclude>Aquifuge

Explanation

An aquifer transmits water readily; an aquitard transmits slowly. An aquiclude can hold water but practically prevents flow, while an aquifuge neither stores nor transmits appreciably in the ideal classification. Thus the intended conductivity ranking is **A**; the last two are idealized negligible-flow categories.

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