3054Civil EngineeringMedium
Lead of crossing is the distance from the________?
Aheel of the switch to the theoretical nose of the crossing
Btoe of the switch to the theoretical nose of crossing
Ctoe of the switch to the actual nose of crossing
Dheel of the switch to the toe of the switch
Correct answer
A. heel of the switch to the theoretical nose of the crossing
Explanation
The correct answer is heel of the switch to the theoretical nose of the crossing.