Question

The distance shown by red line represents ______________

(a) separation

(b) parallel way

(c) height

(d) gauge

The question was posed to me during an online interview.

The above asked question is from Railway Line topic in division Road Estimating, Sanitary and Water Supply Work of Civil Engineering Drawing

Answer 1

Right option is (d) gauge

To elaborate: During the early days of rail, there was considerable variation in the gauge used by different systems. Today, 54.8% of the world’s railways use a gauge of 1,435 mm (4 ft 8 \(\frac{1}{2}\) in), known as standard or international gauge. Gauges wider than standard gauge are called broad gauge; narrower, narrow gauge. Some stretches of track are dual gauge, with three (or sometimes four) parallel rails in place of the usual two, to allow trains of two different gauges to use the same track.