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GATE 2022 AR — Planning – Question 39

Infrastructure, Services and Utilities · Sources of water and intakes · 2 marks · Multiple select

In the traditional Persian context, which descriptions refer to the qanat system?

  1. An underground waterway, tunnelled and channelled
  2. Water raised by scoops on a moving belt between wheels
  3. Conducting water from a source-well rather than raising it
  4. Conducting water between enclosures through gravity fall

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Show answer and explanation

Correct answer: (A) An underground waterway, tunnelled and channelled; (C) Conducting water from a source-well rather than raising it; (D) Conducting water between enclosures through gravity fall

Explanation

A qanat conveys groundwater through a gently sloping underground channel, using gravity rather than lifting it mechanically. This supports A, C, D. The belt-and-scoop mechanism B is a water-lifting device, not the gravity-fed qanat described by the source.

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