MCQOPTIONS
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MCQOPTIONS
| 1. |
Self-locking takes place when |
| A. | Coefficient of friction is equal to or greater than the tangent of the helix angle |
| B. | Coefficient of friction is lesser than or equal to the tangent of the helix angle |
| C. | Coefficient of friction is equal to or greater than the tangent of the helix angle |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |