The GATE Grind

GATE 2025 CE (CE1) – Question 25

Transportation Infrastructure · Geometric design of railway track: speed and cant · 1 mark · Multiple choice

The maximum degree of the curve that can be used for railways in a mountainous region is

  1. 10
  2. 20
  3. 50
  4. 40

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (A) 10

Explanation

The degree of a railway curve is the angle at the centre subtended by a 30 m chord, and a larger degree means a sharper curve. For broad gauge the sharpest curve allowed is 10° (radius about 175 m), and this limit also applies in mountainous country. The other options are higher than any broad gauge limit.