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| Q. |
The distance shown by red line represents |
| A. | separation |
| B. | parallel way |
| C. | height |
| D. | gauge |
| Answer» D. gauge | |
| Explanation: during the early days of rail, there was considerable variation in the gauge used by different systems. today, 54.8% of the world’s railways use a gauge of 1,435 mm | |
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