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| Q.67 | To ensure dynamic balancing of a shaft: | |
| Ans | 1. the net couple due to dynamic forces acting on the shaft is equal to zero . | |
| 2. the net mass and moment is equal to zero. | ||
| 3. the net dynamic force acting on the shaft is equal to zero. | ||
| 4. the net dynamic force and net couple due to dynamic forces acting on the shaft is equal to zero . |
Correct Ans Provided: 4
