Railway Engineering
The load on each axle of a locomotive is 22 tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to 3 pairs of driving wheels will be

19.81
13.21
26.41
6.61

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Railway Engineering
A triangle is used for

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

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