Railway Engineering
A triangle is used for

Separating all the sidings and shunting lines from main lines
Preventing the vehicles from running off the track
Changing the direction of engine
Transferring wagons to and from parallel tracks without shunting

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

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