Eutectoid and Peritectic Reactions MCQ’s

Read Time:1 Minute, 13 Second

This set of Materials Science Multiple Choice Questions & Answers (MCQs) focuses on “Eutectoid and Peritectic Reactions”.

1. A first solid phase results in a second solid phase another third solid phase on cooling during __________ reaction.
a) Eutectoid
b) Peritectic
c) Eutectic
d) Peritectoid

2. A first solid phase results in a second solid plus another third solid phase upon heating during __________ reaction.
a) Eutectoid
b) Peritectic
c) Eutectic
d) Peritectoid

3. On heating, one solid phase results in another solid phase and a liquid phase during __________ reaction.
a) Eutectoid
b) Peritectic
c) Eutectic
d) Peritectoid

4. Which phase will crystallize first just below the liquidus line?

materials-science-questions-answers-eutectic-systems-q7

a) α phase
b) β phase
c) (L+α) phase
d) (L+β) phase

5. Any composition left and right of P will generate ___________
a) Excess of liquid and α
b) Excess of α and liquid
c) Excess of liquid and β
d) Excess of β and liquid

6. What is the eutectoid structure of Iron?
a) Cementite
b) Ferrite
c) Pearlite
d) Austentite

7. At what temperature, all liquid and α will convert to β?

materials-science-questions-answers-eutectic-systems-q7

a) Eutectic temperature
b) Peritectic temperature
c) Eutectoid temperature
d) Peritectoid temperature

8. Which of the following are Peritectic systems?
a) Pt – Ag
b) Ni – Re
c) Ni – Re, Fe – Ge, Sn-Sb
d) Pt – Ag, Ni – Re, Fe – Ge, Sn-Sb

9. What is the maximum %C by weight in hypo-eutectoid steels?
a) 0.5%
b) 0.7%
c) 0.8%
d) 1.2%

10. The phase above eutectoid temperature for carbon steels is known as _______
a) Cementite
b) Ferrite
c) Pearlite
d) Austentite

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Your email address will not be published.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 Eutectic Systems MCQ’s
Next post Gibbs Phase Rule MCQ’s