Iron-Carbon Systems MCQ’s

Read Time:1 Minute, 29 Second

This set of Materials Science Multiple Choice Questions & Answers (MCQs) focuses on “Iron-Carbon Systems”.

1. What is maximum solubility % of carbon and temperature range that Austenite (Ɣ) exist?

materials-science-questions-bank-q1

a) 0.05% and 273°c to 910°c
b) 0.025% and 273°c to 910°c
c) 2.1% and 910°c to 1394°c
d) 0.09% and 1394°c to 1539°c

2. What is maximum solubility % of carbon and temperature range that δ-ferrite exist?

materials-science-questions-bank-q1

a) 0.05% and 273°c to 910°c
b) 0.025% and 273°c to 910°c
c) 2.1% and 910°c to 1394°c
d) 0.09% and 1394°c to 1539°c

3. What is maximum solubility % of carbon and temperature range that α-ferrite exist?

materials-science-questions-bank-q1

a) 0.05% and 273°c to 910°c
b) 0.025% and 273°c to 910°c
c) 2.1% and 910°c to 1394°c
d) 0.05% and 910°c to 1124°c

4. What is the % C content in Cementite (Fe3C)?

materials-science-questions-bank-q1

a) 6.67%
b) 0.025%
c) 2.1%
d) 0.09%

5. What is eutectoid temperature?

materials-science-questions-bank-q1

a) 727°c
b) 768°c
c) 1146°c
d) 1495°c

6. What is the value of eutectic temperature?

materials-science-questions-bank-q1

a) 727°c
b) 768°c
c) 1146°c
d) 1495°c

7. What is the hardest phase of Fe-C system?

materials-science-questions-bank-q1

a) Graphite
b) Bainite
c) Martensite
d) Cementite-

8. At what temperature Fe turns paramagnetic while heating?

materials-science-questions-bank-q1


a) 727°c
b) 768°c
c) 1146°c
d) 1495°c

9. What is the value of peritectic temperature?

materials-science-questions-bank-q1

a) 727°c
b) 768°c
c) 1146°c
d) 1495°c

10. Carbon steel containing 9,1% ferrite is cooled from the region of austenitic (727 °c). What is the percentage C content in the steel?
a) 0.05% C
b) 0.1% C
c) 0.2% C
d) 0.3% C

Happy
Happy
0 %
Sad
Sad
0 %
Excited
Excited
0 %
Sleepy
Sleepy
0 %
Angry
Angry
0 %
Surprise
Surprise
0 %

Average Rating

5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Leave a Reply

Your email address will not be published. Required fields are marked *

Previous post Gibbs Phase Rule MCQ’s
Next post Crystal Structure of Ceramics MCQ’s