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| Q. |
Stretcher bar is provided |
| A. | To permit lateral movement of the tongue rail |
| B. | To maintain the two tongue rails at the exact distance |
| C. | To ensure exact gauge at the toe of the switch as well as the nose of crossing |
| D. | To prevent any vertical movement between the wing rail and nose of crossing |
| Answer» B. To maintain the two tongue rails at the exact distance | |
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