Railway Engineering
The purpose of providing fillet in a rail section is to

Avoid the stress concentration
Increase the vertical stiffness
Increase the lateral strength
Reduce the wear

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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 B to A
Will be more in the direction of A to B
Cannot be determined from the given data

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