31. Sand may be used as ballast for
- steel sleeper
- wooden sleeper
- cast-iron sleeper
- none of these
32. For a broad gauge (BG) in India, what is the maximum height of rolling stock?
- 2.745 m
- 3.25 m
- 3.45 m
- 4.14 m
33. Distance between inner faces of the flanges is kept
- equal to gauge distance
- slightly less than gauge distance
- double amount of gauge distance
- slightly more than gauge distance
34. 52 Kg rails are mostly used in
- Broad gauge
- Metre gauge
- Narrow gauge
- Both a and b
35. Which of the following sleepers would be best for track circuiting?
- Cast iron
- Wooden
- Concrete
- Steel