# Geometric design of Railway Track MCQ

1. The gauge of railway track is defined as

1. the distance between the centres of the rails
2. the distance between the inner faces of the rail heads
3. the distance between the outer faces of the rail heads
4. the distance between the webs

2. The standard gauge width for broad gauge is

1. 1.2 m
2. 1.767 m
3. 1.752 m
4. 1.676 m
5. 1.525 m

3. Narrow gauge is adopted where?

1. Terrain is hilly
2. Number of river crossing are more
3. Expected revenue earning is low
4. Acquisition of land is difficult

4. The railway station at which a track line meets a main line is called

1. Junction station
2. Way side station
3. Flag station
4. Terminal station

5. In an electric railway line, the height of catenary contact above the rail top is

1. 4.35 m
2. 6.78 m
3. 3.12 m
4. 5.70 m

6. Gauge of a railway track is the measure of

1. distance between centre to centre of rails
2. distance between inner faces of rails
3. distance between outer faces of rails
4. distance between the webs of two rails

7. Equilibrium cant for a 3° curve on a Broad Gauge track, if the permitted speed is 70 kmph. is

1. 18.85 cm
2. 16.20 cm
3. 15.85 cm
4. 11.25 cm

8. What is the steepest gradient permissible on a 2° curve for a broad gauge line having ruling gradient of 1 in 200?

1. 1 in 250
2. 1 in 238
3. 1 in 212
4. 1 in 194

9. For undeveloped areas, the type of gauge adopted is

1. Metre gauge
3. Narrow gauge
4. All of these

10. The maximum degree of curvature for Meter Gauge track is limited to

1. 16°
2. 10°
3. 40°
4. 30°
5. 50°

11. The desirable rate of change of cant deficiency in case of Meter Gauge track is

1. 20 mm/sec
2. 35 mm/sec
3. 55 mm/sec
4. 65 mm/sec
5. 75 mm/sec

12. The permissible cant deficiency for speed of upto 100 kmph on a Narrow Gauge track is

1. 3.8 mm
2. 3.8 cm
3. 5.1 mm
4. 5.1 cm

13. Selection of gauge depends on

1. Type of sleeper and ballast
2. Points and crossing
3. Traffic volume and speed
4. Rail strength and rainfall

14. Gauge of a permanent way is

1. minimum distance between running face of rails
2. width of formation
3. distance between centre of rails
4. distance between outer faces of rails

15. The grade compensation on 4° curve on a Broad gauge railway track is

1. 0.16%
2. 0.20%
3. 0.08%
4. 0.12%

16. The steepest gradient permissible on a 2.5° curve for B.G. line having ruling gradient of 1 in 200 is

1. 1 in 235
2. 1 in 220
3. 1 in 275
4. 1 in 250

17. Choice of gauge depends on

1. volume of traffic only
2. speed of traffic only
3. neither (volume of traffic) nor (speed of train)
4. both (volume of traffic) and (speed of train)

18. More ‘gauge width’ is recommended

1. to attain greater speed
2. in hily areas
3. for cheap plate laying
4. when the trafic flow is highly fluctuating

19. The limit value of cant gradient for all gauge is

1. 1 in 360
2. 1 in 720
3. 1 in 1000
4. 1 in 1200

20. The standard minimum crossing clearance for broad gauge is

1. 44 mm
2. 41 mm
3. 38 mm
4. 35 mm