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

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Railway Engineering
The treadle bar is provided

near and parallel to inner side of both the rails
at right angle to the rail
near and parallel to inner side of one of the rails
in the middle of the track a little in front of the toes of the tongue rail

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