| Date | November 2017 | Marks available | 1 | Reference code | 17N.1.SL.TZ0.20 |
| Level | SL | Paper | 1 | Time zone | no time zone |
| Command term | Question number | 20 | Adapted from | N/A |
Question
What process will increase the toughness of a metal?
A. Normalizing
B. Annealing
C. Tempering
D. Hardening
Markscheme
C
Examiners report
[N/A]
