Railway Engineering
Switch angle depends on i) heel divergence ii) length of tongue rail iii) flangeway clearance iv) throw of switch The correct answer is

(i)and(iv)
(ii) and (iii)
(iii) and (iv)
(i) and (ii)

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Railway Engineering
Flange-way clearance is the distance

Through which the tongue rail moves laterally at the toe of the switch
Between the gauge faces of the stock rail and the tongue rail
None of these
Between the adjoining faces of the running rail and the check rail near the crossing

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