Railway Engineering
The formation width for a railway track depends on the i) type of gauge ii) number of tracks to be laid side by side iii) slope of sides of embankment or cutting The correct answer is

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

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Railway Engineering
The treadle bar is provided

near and parallel to inner side of one of the rails
at right angle to the rail
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

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