Q.1
14 Marks(a)
Define following properties of materials: (a) Strength, (b) Elasticity and (c) Hardness
(b)
Give classification of engineering materials
(c)
Define atomic packing factor (APF). Calculate APF for FCC and BCC structures.
Gujarat Technological UniversitySummer 2025 examination
GTU 3131904 Material Science and Metallurgy Summer 2025 Question Paper & PDF
B.E. · Mechanical Engineering · Semester 3 · Subject code 3131904
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
No solutions on this paper yetNeed them for your exam? Ask once. Papers that students ask for are solved first, and we aim to add them within 24 hours.
Noted. This paper is in our queue now. Check back tomorrow.
We could not record that here. Email the paper name to hirenjsca@gmail.com and we will add it.
12 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 12 repeated 3131904 questions, most asked first
Q.2
14 Marks(a)
What is a solid solution? Explain with a neat sketch various types of solid solutions.
(c)
Explain with neat sketch the steps involved in preparing specimen for microscopic examination.
OR
(c)
What is Gibb’s phase rule? Define system, phase and degree of freedom. Show that the degree of freedom at eutectic point in a binary phase diagram is zero.
Also asked in Summer 2026 Q3b OR
Q.3
14 Marks(c)
Define allotropy. Explain it with reference to iron.
OR
(a)
State the composition, properties and applications of Hindalium and Invar.
(b)
Explain the ‘Lever Rule’ with the help of a binary phase diagram.
(c)
Draw Iron-Iron carbide equilibrium diagram. Name all important phases, temperatures and reactions.
Also asked in Summer 2026 Q3c
Q.4
14 Marks(a)
Explain full annealing process
(c)
Justify the requirement of Heat treatment processes for metals. Explain with neat sketch TTT diagram for heat treatment of steel.
Also asked in Summer 2026 Q4c
OR
(b)
Explain the steps involved in Dye penetrant testing with neat sketch.
(c)
Define Powder Metallurgy. State advantages, limitations and applications of Powder Metallurgy
Also asked in Summer 2026 Q4a OR
Q.5
14 Marks(b)
Compare destructive testing with non-destructive testing.
(c)
Explain in detail Radiography testing method along with its advantages and limitations.
OR
(a)
Compare nodular cast iron and malleable cast iron.
(c)
Describe Ultrasonic Testing Method with its advantages and limitations.
Also asked in Summer 2026 Q5c OR
More Material Science and Metallurgy papers
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
Other Semester 3 subjects
BE Mechanical
Preparing with friends?
Send this paper to your class group. Every question has its own link.
About this paper
Official Gujarat Technological University (GTU) examination paper for Material Science and Metallurgy (Summer 2025, B.E. · Mechanical Engineering, Sem 3). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.