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Assertion (A): The centre wing box is carried continuously through the fuselage.

Reason (R): Interrupting it would require the full wing bending moment to be transferred through joints.

Select the correct answer from the options below.

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

Answer: B

Both are true and the second explains the first. Cap loads of several thousand kilonewtons would demand enormous fittings if the box were broken at the side of the body. Running it straight through lets the bending balance from one wing against the other.

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