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Composite structures are inspected in service principally by

  • A.Ultrasonic and tap testing
  • B.Visual inspection alone
  • C.Magnetic particle inspection
  • D.Eddy current inspection

Answer: A

Delamination and disbonds leave little surface evidence, so methods that see into the thickness are needed. Magnetic and eddy current techniques rely on ferromagnetic or conductive behaviour and do not transfer usefully to a laminate.

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