Railway Engineering
Staggered joints are generally provided

On curves
None of these
On straight track
When two different rail sections are required to be joined

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Railway Engineering
Switch angle is the angle between

the gauge face of the stock rail and outer face of the tongue rail
the outer face of the stock rail and tongue rail
the gauge face of the stock rail and tongue rail
the outer face of the stock rail and the gauge face of the tongue rail

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