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Q: Limit of proportionality depends upon which of the following?
  • A. Area of cross-section
  • B. Type of loading
  • C. Type of material
  • D. None of the above
Correct Answer: Option C - Proportional limit is the maximum amount of stress that an object can handle, while still obeying the hook's law. Therefore limit of proportionality depends on the type of material but not on the type of loading and the area of cross-section.
C. Proportional limit is the maximum amount of stress that an object can handle, while still obeying the hook's law. Therefore limit of proportionality depends on the type of material but not on the type of loading and the area of cross-section.

Explanations:

Proportional limit is the maximum amount of stress that an object can handle, while still obeying the hook's law. Therefore limit of proportionality depends on the type of material but not on the type of loading and the area of cross-section.