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Q: In a simply supported beam, temperature variation produces –
  • A. Small stresses
  • B. Zero stresses
  • C. Large stresses
  • D. No effect
Correct Answer: Option B - In a simply supported beam temperature variation produces zero stresses. • Cantilever and simply supported beam, No thermal stress (i.e. zero stress) will be developed because they are free to expand along the length.
B. In a simply supported beam temperature variation produces zero stresses. • Cantilever and simply supported beam, No thermal stress (i.e. zero stress) will be developed because they are free to expand along the length.

Explanations:

In a simply supported beam temperature variation produces zero stresses. • Cantilever and simply supported beam, No thermal stress (i.e. zero stress) will be developed because they are free to expand along the length.