B.TechSemester 32022-23Material ScienceKOE-032

Material Science (KOE-032) - AKTU Question Paper 2022-23

B.Tech · Semester 3 · Free PDF Download

This is the official AKTU Material Science Previous Year Question Paper for B.Tech Semester 3, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 3

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Material Science (KOE-032) — complete question paper

Section AAttempt all questions in brief. 2 x 10 = 20

a
What are equilibrium diagrams? What are their advantages and l imitations?
b
Define phase. State the conditions for unlimited solid solubil ity for an alloy system
c
What is the significance of TTT diagram?
d
Write the alloying elemen ts in stainless steel
e
Define creep and creep fracture
f
Mention the salient features o f Cup and Cone type of fracture
g
Explain the magnetic materials with suitable examples
h
What is superconductivity? (i) Distinguish between ceramics and composites. (j) How is a glass distinguished from other ceramic materials?

Section BAttempt any three of the following: 10x3=30

a
Discuss the Hume-Rothery rules that govern the extension subst itutional solid Solubility
b
Draw and explain Fe Fe3C phase diagram Indicate the carbon per centage range of steel
c
Discuss in brief various mechan isms of strengthening in metals and Alloys
d
Explain the practical importanc e of hysteresis curve for ferromagnetic materials?
e
What is tempered glass and how can it be produced?

Section CAttempt any one part of the following: 10x1=10

a
State Gibb’s phase rule. Mention the number of variables and t he degree of freedom at the eutectic temperature of a binary phase diagram
b
Draw eutectic phase diagram and explain it
a
State ficks laws of diffusion in details
b
Explain Time-Temperature Trans formation diagram in detail
a
Why creep is considered to be a high temperature property? Enu merate the metallurgical variables affecting the creep behavior of a m aterial. Explain the effect of grain size on the creep strength of a material
b
Draw a neat diagram and explai n behaviour of specimens under b rittle and ductile fractures
a
Explain magnetism, diamagnetism, paramagnetism, and ferromagnetism
b
In terms of electron energy band structure, discuss the differ ence in Electrical conductivity between metals, semiconductors and insulators
a
What are glass ceramics? How are they formed? What are desirab le characteristics of glass ceramics?
b
What are nano materials? Discus s their engineering applications

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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