Railway Engineering
Which of the following factors govern the choice of the gauge ?
i) volume and nature of traffic
ii) speed of train
iii) physical features of the country
The correct answer is

both (i) and (ii)
only (i)
(i), (ii) and (iii)
both (ii) and (iii)

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Railway Engineering
The treadle bar is provided

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

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