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GATE 2019 CE (CE1) – Question 24

Irrigation · Canals, design of weirs on permeable foundation, cross drainage structures · 1 mark · Multiple choice

An irrigation canal passes below the bed level of a natural stream. Which cross-drainage structure is provided?

  1. Aqueduct
  2. Level crossing
  3. Sluice gate
  4. Super passage

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Show answer and explanation

Correct answer: (D) Super passage

Explanation

When the drainage stream crosses above the canal,the arrangement is a **super passage,D**. An aqueduct carries the canal above the drain. A level crossing is used when their levels are approximately equal.