Railway Engineering
A Broad Gauge branch line takes off as a contrary flexure from a main line If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the superelevation to be actually provided on the branch line will be

15 mm
65 mm
85 mm
10 mm

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Railway Engineering
Stretcher bar is provided

To permit lateral movement of the tongue rail
To ensure exact gauge at the toe of the switch as well as the nose of crossing
To prevent any vertical movement between the wing rail and nose of crossing
To maintain the two tongue rails at the exact distance

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