engineering recuitment ISRO Scientist Mechanical Mock Test Engineering Materials Science Structure and Properties of Engineering Materials Phase Diagrams
Elements A and B form eutectic type binary phase diagrams and the eutectic composition is 60 wt% B. If just below eutectic temperature, the eutectic phase contains equal amounts (by wt) of two solid phases, then the compositions of the two solid phases are
1
20 wt% B and 90 wt% B
2
30 wt% B and 90 wt% B
3
20 wt% B and 80 wt% B
4
30 wt% B and 80 wt% B