General Studies · Machine Design
In a helical compression spring, if the wire diameter (d) is doubled while keeping all other dimensions (such as mean coil diameter and number of active turns) and material properties constant, how does the spring stiffness (k) change?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1k remains unchanged
- 2k increases by a factor of 8
- 3k increases by a factor of 16✓
- 4k is doubled
Correct answer
k increases by a factor of 16
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