General Studies · Design of Machine Elements
If Nt is the total number of coils in a helical spring subjected to compressive force and if the ends are squared and ground, then the number of active turns is:
- 1Nt - 1
- 2Nt - 2✓
- 3Nt - 0.5
- 4Nt
Correct answer
Nt - 2
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