2749Civil EngineeringMedium
Stretcher bar is provided________?
Ato maintain the two tongue rails at the exact distance
Bto permit lateral movement of the tongue rail
Cto prevent any vertical movement between the wing rail and nose of crossing
Dto ensure exact gauge at the toe of the switch as well as the nose of crossing
Correct answer
A. to maintain the two tongue rails at the exact distance
Explanation
The correct answer is to maintain the two tongue rails at the exact distance.