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Assertion (A): Damage tolerance requires a defined inspection programme.

Reason (R): The philosophy assumes cracks are present and must be found before reaching critical size.

Select the correct answer from the options below.

  • A.A is true but R is false
  • B.A is false but R is true
  • C.Both A and R are true, and R is the correct explanation of A
  • D.Both A and R are true, but R is not the correct explanation of A

Answer: C

Both statements are true and the second is the reason for the first. Without inspection there is nothing to catch the crack, so the interval calculation is an inseparable part of the design rather than a maintenance afterthought.

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