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 (iv)
(i) and (iii)
(ii) and (iii)
(i)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 more in the direction of B to A
Cannot be determined from the given data
Will be maximum at the middle of A and B
Will be more in the direction of A to B

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