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As-built drawings for an existing building should be

  • A.verified against the structure before being relied on
  • B.accepted as accurate
  • C.discarded entirely
  • D.used to establish the material strengths without the need for any testing at all

Answer: A

Buildings are altered during construction and afterwards, and drawings are seldom updated, so spot checks on dimensions and reinforcement are essential. Where no drawings exist at all, a full survey with a cover meter and selective breaking out takes their place.

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