Q
Lead of crossing is the distance from the__________________?
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A
A. Heel of the switch to the toe of the switch
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B
B. Heel of the switch to the theoretical nose of the crossing
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C
C. Toe of the switch to the theoretical nose of crossing
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D
D. Toe of the switch to the actual nose of crossing
Correct Answer:
B. B. Heel of the switch to the theoretical nose of the crossing
