Railway Engineering
The formation width for a railway track depends on the i) type of gauge ii) number of tracks to be laid side by side iii) slope of sides of embankment or cutting The correct answer is

(i), (ii) and (iii)
both (i) and (iii)
both (i) and (ii)
only (i)

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Railway Engineering
Lead of crossing is the distance from the

toe of the switch to the theoretical nose of crossing
heel of the switch to the theoretical nose of the crossing
toe of the switch to the actual nose of crossing
heel of the switch to the toe of the switch

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