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

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

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Railway Engineering
Flange-way clearance is the distance

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

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Railway Engineering
Heel divergence is

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

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