B.TechSemester 42022-23Material ScienceKOE-042

Material Science (KOE-042) - AKTU Question Paper 2022-23

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Material Science Previous Year Question Paper for B.Tech Semester 4, 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 4

Session:2022-23

University:AKTU / UPTU

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Questions Asked in 2022-23

Material Science (KOE-042) — complete question paper

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

a
Define the terms: (i) Phase, (ii) Phase diagrams
b
State Gibb’s phase rule
c
What are alloy steels?
d
Write the alloying elements in HSLA steel
e
Define true stress and true stain
f
Define deformation of engineering materials
g
Explain the ferromagnetic materials with suitable examples
h
What is superconductor materials? (i) Distinguish between matrix and reinforcement in composites materials. (j) What do you mean by shape memory alloy?

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

a
Derive the lever rule for the amount in wt% of each phase in two-phase regions of a binary phase diagram
b
Explain the working of Time-Temperature Transformat ion diagram and what information is supplied by them?
c
Define slip system. Explain why zinc is brittle mat erial and copper and aluminium are ductile
d
Define hysteresis in ferromagnetic materials. Draw a hysteresis loop for a ferromagnetic material
e
What are the basic steps in the processing of ceram ic products? How the raw materials are selected for the preparation of ceramic products?

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

b
Derive Gibb’s phase rule
a
Explain in detail hypo and hypereutectoid steels
b
State fick’s laws of diffusion in detail
a
What is meant by creep? Draw a typical creep curve for a metal under constant load and at a relatively high temperature, and indi cate on it all three stages of creep
b
Describe the salient features of Brinell, Rockwell B, and Vicker’s hardness test
a
What is superconductivity? Draw the curve of resist ivity versus temperature for normal metal and pure superconductors
b
What is meant by polarization of a material? Explai n different types of polarization
a
What are fibrous composites? How are they classified? Explain their properties
b
What are carbon nanotubes? Explain various properti es and applications of carbon nanotubes

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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