Download GTU BE/B.Tech 2019 Summer 6th Sem New 2163901 Coating Technology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 6th Sem New 2163901 Coating Technology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code: 2163901 Date:10/05/2019
Subject Name: Coating technology
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

MARKS

Q.1 (a) Define Laser Cladding. 03
(b) Explain Conductive Coating with some Applications. 04
(c) Describe Surface Engineering and Hence Explain (i) Changing
Surface Metallurgy (ii) Changing Surface Chemistry (iii) Adding a
Surface Layer.
07

Q.2 (a) Describe Ellipsometry for Characterization of Nanocoating . 03
(b) Write Full form of DLC and Hence write Applications of DLC films. 04
(c) Describe Laser Surface Alloying and Its Mixing Mechanism. 07
OR
(c) Explain Organic Coating and Anodizing. 07

Q.3 (a) Define Electrophoretic Deposition. 03
(b) What is Anti-Friction Coating? Write its Applications 04
(c) Write a short note on Galvanizing and its types. 07
OR
Q.3 (a) Describe Anti-Scratch Coating and How it Works Briefly. 03
(b) Describe Wear and Its type briefly. 04
(c) Explain Wear and Wetability of Surface. 07

Q.4 (a) Explain Non-Metallic Coating. 03
(b) Define Coating. Write its Advantages and Disadvantages. 04
(c) Describe Sol-Gel Coating and Radiation Cured Coating. 07
OR
Q.4 (a) Define Electron Beam Hardening and its Uses. 03
(b) Explain Basic Setup of Laser Cladding With Diagram. 04
(c) Describe Surface Tension and Contact Angle. Write Application of
coating.

07
Q.5 (a) Explain ion Beam Implantation. 03
(b) Describe Electroplating and it ?s Working Principle. 04
(c) Describe Working Principle, Types and Application of
Electrophoretic Deposition.
07
OR

Q.5 (a) What are Applications of Nanocoating? 03
(b) Describe Metallic Coating. 04
(c) Mention and Describe any two Techniques used for Characterization
of Coating.
07

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