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)
both (i) and (ii)
only (i)

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Railway Engineering
A triangle is used for

Changing the direction of engine
Separating all the sidings and shunting lines from main lines
Preventing the vehicles from running off the track
Transferring wagons to and from parallel tracks without shunting

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Railway Engineering
The treadle bar is provided

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