McqMate
| Q. |
The main causes of crankshaft vibration are |
| A. | variation in torque |
| B. | cyclic variation of gas and combustion products |
| C. | unbalanced weight of parts |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: crankshaft vibration is caused by all the above mentioned causes. | |
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