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Assertion (A): Symmetry may be used to halve a model only when the loading is symmetric too.

Reason (R): A symmetric structure under asymmetric load does not deform symmetrically.

Select the correct answer from the options below.

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

Answer: A

Both statements are true and the second is the reason for the first. Applying symmetry boundary conditions to an asymmetric case imposes a constraint the real structure does not have, and the answer is simply wrong rather than merely approximate.

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