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Q. |
To design a cross-over between parallel tracks, the required components are: |
A. | Two switch points, two acute angle crossings and two check rails |
B. | Two switch points, two acute angle crossings and four check rails |
C. | Two switch points, two acute angle crossings and six check rails |
D. | None of these |
Answer» B. Two switch points, two acute angle crossings and four check rails |
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