Railway Engineering
In a scissors cross-over, the crossings provided are
i) 2 obtuse angle crossings
ii) 4 obtuse angle crossings
iii) 4 acute angle crossings
iv) 6 acute angle crossings
The correct answer is

(i)and(iv)
(ii) and (iii)
(ii) and (iv)
(i) and (iii)

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Railway Engineering
Lead of crossing is the distance from the

toe of the switch to the actual nose of crossing
toe of the switch to the theoretical nose of crossing
heel of the switch to the toe of the switch
heel of the switch to the theoretical nose of the crossing

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