If L1 and L2 are actual and theoretical lengths of a tongue rail, d is – McqOptions

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1.	If L1 and L2 are actual and theoretical lengths of a tongue rail, d is heel divergence and t is thickness
A.	sin 1 (d - t/
B.	tan 1 (d - t/
C.	sin 1 (d - t/
D.	tan 1 (d - t/
Answer» B. tan 1 (d - t/

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