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| Q. |
How does the depth of ballast cushion affect rail section? |
| A. | higher the depth bigger the rail section |
| B. | depth is less, bigger the rail section |
| C. | depth is less, smaller the rail section |
| D. | depth and rail section same |
| Answer» B. depth is less, bigger the rail section | |
| Explanation: the selection of the rail section depends on many factors like heaviest axle loads, maximum permissible speed, type of sleepers and depth of ballast cushion. if the depth of the ballast cushion is less, then a bigger rail section has to be provided. | |
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