Railway Engineering
Creep is the

Lateral movement of rail
Vertical movement of rail
Longitudinal movement of rail
Difference in level of two rails

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Railway Engineering
Stretcher bar is provided

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
To permit lateral movement of the tongue rail

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