If is the distance between the parallel sidings and β is the limiting angle of crossings, the distance between the noses of crossing measured parallel to the main track, is

If is the distance between the parallel sidings and β is the limitin

1.	If is the distance between the parallel sidings and β is the limiting angle of crossings, the distance between the noses of crossing measured parallel to the main track, is
A.	sin β
B.	cot β
C.	tan β
D.	sec β
Answer» C. tan β

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