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Q: Which of the following statements is true ? A. If a truss consists of a non–triangular element, then it will essentially be unstable. B. In the above cases, instability is the most probable occurrence, but there are a lot of examples which are stable.
  • A. Only A
  • B. Only B
  • C. Both A and B
  • D. None of these
Correct Answer: Option B - Statement A is incorrect because a truss consist non-triangular element may be unstable, but not always. • Instability is the most probable occurrence, but there are a lot of examples which are stable.
B. Statement A is incorrect because a truss consist non-triangular element may be unstable, but not always. • Instability is the most probable occurrence, but there are a lot of examples which are stable.

Explanations:

Statement A is incorrect because a truss consist non-triangular element may be unstable, but not always. • Instability is the most probable occurrence, but there are a lot of examples which are stable.