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

26.41
6.61
19.81
13.21

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Railway Engineering
Heel divergence is

Always greater than flange-way clearance
Sometimes greater than flange-way clearance
Equal to flange-way clearance
Always less than flange-way clearance

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