McqMate
| Q. |
Wing screws are used where |
| A. | tight grip is essential |
| B. | frequently manual locking and unlocking is necessary |
| C. | stress reversal is severe |
| D. | high torque is needed for tightening |
| E. | Increasing the diameter of threaded portion |
| Answer» B. frequently manual locking and unlocking is necessary | |
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