Gujarat Technological UniversitySummer 2026 examination

GTU 3171931 Nanotechnology and surface Engineering Summer 2026 Question Paper & PDF

B.E. · Mechanical Engineering · Semester 7 · Subject code 3171931
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Total
70 marks
To pass
23 marks (33%)
Duration
2.5 Hours 2:30 PM – 5:00 PM
Questions
5 with internal choice
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Q.1

14 Marks
(a)
3 marks
Define Nanotechnology. Also, give its applications.
(b)
4 marks
Explain in brief the different classes of nanomaterials.
(c)
7 marks

Explain engineering applications of nanoscience and nanotechnology in the field of cosmetics and consumer goods industry.

Q.2

14 Marks
(a)
3 marks
Classify various nano-synthesis methods.
(b)
4 marks

Distinguish between Top-down and Bottom-up approach of nanomaterial synthesis.

(c)
7 marks
Explain synthesis by vapor condensation methods.
(c)
7 marks
Explain DC and RF sputtering method.

Q.3

14 Marks
(a)
3 marks
State applications, advantages, and disadvantages of XRD.
(b)
4 marks
Explain Bragg’s equation.
(c)
7 marks

Explain transmission electron microscopy (TEM). Also, give its applications.

(a)
3 marks
What are the different tools to characterize nanomaterials?
(b)
4 marks
Distinguish between SEM and TEM
(c)
7 marks
Explain Atomic force microscopy. Also, give its applications.

Q.4

14 Marks
(a)
3 marks
What do you mean by surface engineering?
(b)
4 marks
Illustrate with a neat sketch electroplating process.
(c)
7 marks
Explain the Sand blasting method used for surface preparation.
(a)
3 marks
Enlist different methods for surface modification.
(b)
4 marks
Illustrate with a neat sketch galvanizing process.
(c)
7 marks
Explain the Shot peening process with a neat sketch.

Q.5

14 Marks
(a)
3 marks
What are the important properties of IVD coatings?
(b)
4 marks
Give a classification of different CVD processes.
(c)
7 marks

What is IVD? Explain the working principle of IVD with a neat sketch.

(a)
3 marks
What is ion implantation? Also, give its applications.
(b)
4 marks
Explain the steps to be followed for the IVD aluminium process.
(c)
7 marks
Explain surface modification by friction stir processing.

Other Semester 7 subjects

BE Mechanical

2171901
Operation Research
2171903
Computer Aided Manufacturing
2171909
Machine Design
2171910
Power Plant Engineering

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About this paper

Official Gujarat Technological University (GTU) examination paper for Nanotechnology and surface Engineering (Summer 2026, B.E. · Mechanical Engineering, Sem 7). 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.

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