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

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

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Railway Engineering
Stretcher bar is provided

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

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Railway Engineering
Flange-way clearance is the distance

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
None of these

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