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Q. |
If D is distance between centres of two parallel tracks of gauge G with entire curved leads and equal angles of crossing, total length of crossover, is |
A. | D (4R - 2G - D)] |
B. | D (3R - 2G -D)] |
C. | D (3R + 2G - D)] |
D. | D (4 + 2G - D)] |
Answer» A. D (4R - 2G - D)] |
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