51. Which of the following statement is wrong?
- Coning of wheel is necessary to prevent rubbing of flange of wheel with rails
- Coning is provided at 1 in 20 slope
- In conning wheels are given an outward slope
- Coning of wheels is required only in curves
52. What is track capacity of a permanent way if 360 trains pass in a day?
- 36
- 3.6
- 15
- 1.5
53. The equilibrium cant for a railway curve of radius 344 m for an average speed of 60 kmph is
- 8.24 cm
- 6.88 cm
- 5.43 cm
- 9.36 cm
54. Racking force on a steel railway bridge is due to
- Tractive effect of the driving wheel
- Braking effect
- Resistance offered by the bearing to the movement at the roller
- Lateral movement of the train when moving on a straight track
55. In case of mountain alignment of railway track, in order to remain within the ruling gradient the length of the railway line is increased artificially by the development process. Of the following, which is NOT one such development technique?
- Zigzag line method
- Switch line method
- Complete loop method
- Winkler’s method