QUESTION TYPE: Paradox
PARADOX: High stress points make bridges more likely to fracture. Yet the fractures tend not to occur at high stress points.
ANALYSIS: This seems fairly simple to explain. The stress points weaken the structure, but the actual breaks occur elsewhere for some reason. The right answer will give us a reason.
___________
- This shows the phenomenon is common, but doesn’t help us explain why this occurs.
- CORRECT. Perfect, this explains why the fractures don’t occur where we would expect them to.
- This doesn’t explain why the fractures don’t occur at those points.
- Again, this doesn’t explain why structures with stress points fracture the way they do.
- As in A, C and D, this offers no explanation. It only tells us one reason why stress points could occur.
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