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| Q. |
Which of the following statement is correct? |
| A. | When wheel passes over a rail joint, it causes positive creep. |
| B. | Insufficient and defective packing of ballast causes creep. |
| C. | Train wheels cause slight depression on the table of the rails due to their own weight |
| D. | all of the above |
| Answer» D. all of the above | |
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