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Question 6381
NEET Physics · Medium

Mechanical Properties of Solids: Advanced Solids Mixed MCQ

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Advanced Solids MixedMediumQuestion 6381

Question

Long bridge spans require expansion joints primarily because:
  1. A
    Wind forces
  2. B
    Thermal expansion can cause massive compressive stress
    Correct
  3. C
    Aesthetic reasons
  4. D
    Water resistance

Correct answer

Thermal expansion can cause massive compressive stress

Explanation

Without gaps, thermal expansion creates huge compressive stress that can buckle the structure.

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