Railway Engineering
In a B.G. railway track, the specified ruling gradent is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of

1 in 457
1 in 257
1 in 357
1 in 512

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Railway Engineering
Flange-way clearance is the distance

None of these
Between the adjoining faces of the running rail and the check rail near the crossing
Between the gauge faces of the stock rail and the tongue rail
Through which the tongue rail moves laterally at the toe of the switch

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