Date | May 2018 | Marks available | 1 | Reference code | 18M.1.SL.TZ0.14 |
Level | SL | Paper | 1 | Time zone | no time zone |
Command term | Question number | 14 | Adapted from | N/A |
Question
The joints along railway tracks have noticeable gaps. This is not a design flaw as these gaps serve a purpose, see Figure 5.
Figure 5: The gaps along railway tracks
[Source: https://commons.wikimedia.org/wiki/File:Track_joint.jpg]
What purpose do the gaps along railway tracks serve?
A. Easy access for maintenance
B. Allow for thermal expansion
C. Ease of transportation
D. To adjust the distance between the wooden sleepers
Markscheme
B
Examiners report
[N/A]