If D is distance between centres of two parallel track of gauge G, the – McqOptions

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1.	If D is distance between centres of two parallel track of gauge G, then, total length of cross-over (from the point of commencement to the point of termination) with an intermediate straight portion and N crossing, is given by
A.	DN + G [N + N2)]
B.	DN + G [2N + N2)]
C.	DN + G [3N + N2)]
D.	DN + G [4N + N2)]
Answer» D. DN + G [4N + N2)]

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