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GATE 2017 CE (CE1) – Question 6

General Aptitude · Verbal Aptitude: Grammar and Vocabulary · 2 marks · Multiple choice

The foundation of an old concert hall was feared to be affected by construction of a new metro line. Modern tunnelling technology tried to mitigate pressurized air pockets created by excavating large amounts of soil, but even with these safeguards the soil below the hall was feared unstable. What can be inferred?

  1. Foundations of old buildings create pressurized underground air pockets that are difficult to handle during metro construction.
  2. Metro construction has to be done carefully considering its impact on foundations of existing buildings.
  3. Old buildings are an impossible hurdle to metro construction in an area.
  4. Pressurized air can be used to excavate large amounts of soil underground.

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Show answer and explanation

Correct answer: (B) Metro construction has to be done carefully considering its impact on foundations of existing buildings.

Explanation

The passage describes a potential effect of tunnelling on an existing foundation, together with safeguards and residual concern. It supports careful consideration of nearby foundations, B. It does not say foundations create air pockets, that construction is impossible, or that pressurized air is the excavation method.

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