Download GTU BE/B.Tech 2019 Summer 6th Sem New 2162506 Metal Joining Technology Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 6th Sem New 2162506 Metal Joining Technology Previous Question Paper

1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ?VI(NEW) ? EXAMINATION ? SUMMER 2019
Subject Code:2162506 Date:10/05/2019
Subject Name:Metal Joining 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 welding. 03
(b) List advantages of welding over riveting. 04
(c) Classify welding as per AWS. 07

Q.2 (a) Define gas welding. 03
(b) List characteristics of flux in welding. 04
(c) Sketch different gas welding flames. 07
OR
(c) List gas welding equipments and their applications. 07
Q.3 (a) What is an arc? 03
(b) What is carbon active welding? 04
(c) Describe GMAW. 07
OR
Q.3 (a) What is polarity? 03
(b) What is submerged arc? 04
(c) Describe GTAW. 07
Q.4 (a) What is solid state welding? 03
(b) List any 2 welding defects (other than distortion) and their
causes.
04
(c) Explain friction inertia welding in detail. 07
OR
Q.4 (a) What is chemical welding? 03
(b) Which are the causes of welding distortion? 04
(c) Explain thermit welding in detail. 07
Q.5 (a) What is NDT? 03
(b) Explain MPT. 04
(c) Classify welding electrode. 07
OR

Q.5 (a) What is resistance welding? 03
(b) Write down principles of Radiography Testing. 04
(c) Draw a neat sketch of standard location of elements of welding
symbols.
07


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