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

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

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Railway Engineering
On a single rail track, goods trains loaded with heavy iron material run starting from ‘A’ to ‘B’ and then empty wagons run from ‘B’ to ‘A’. The amount of creep in the rails:

Will be maximum at the middle of A and B
Will be more in the direction of A to B
Cannot be determined from the given data
Will be more in the direction of B to A

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