General Studies · Screws and Fasteners
For a power screw to be self-locking, which of the following conditions must be satisfied?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Efficiency is greater than 50%
- 2Efficiency is exactly 50%
- 3Friction angle is less than the helix angle
- 4Friction angle is greater than the helix angle✓
Correct answer
Friction angle is greater than the helix angle
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