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What distinguishes statically indeterminate beams from determinate ones?

19. What distinguishes statically indeterminate beams from determinate ones?

1. They require only one equilibrium equation for analysis
2. They have fewer support constraints
3. They require additional compatibility equations beyond equilibrium
4. They undergo elastic deformation only

Answer

The correct answer is: C) They require additional compatibility equations beyond equilibrium

Explanation

Statically indeterminate beams require additional compatibility equations beyond equilibrium equations for their analysis due to redundant supports or constraints.