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DEPARTMENT OF Mechanical Engineering “T3 EXAMINATION- MAY 2018� Semester: 2nd Subject: Welding and allied process Branch: Mechanical engg. Course Type: Core Time: 3 Hours Max.Marks: 60

Date of Exam: 18/05/2018 Subject Code: MEH 508 Session: Morning Course Nature: Hard Program: M.Tech Signature: HOD/Associate HOD: PART-A

(2x10=20 marks)

Note:- All questions are compulsory. Q 1- What are the difficulties for welding in hardened metals? Q 2- Name different welding methods suitable for copper alloys. Q 3- Define the properties of Aluminum. Q 4- What are the main properties of non ferrous metals? Q 5- Name the different joining processes of ceramics. Q 6-What are the appropriate methods for welding of stainless steel? Q 7- Differentiate between different types of cast iron on the basis of their carbon content. Q 8- What are the types of welding processes for ferrous alloys? Q 9- Define composite materials with examples. Q 10- Compare melting points of copper and aluminum.

PART-B

(2x10=20 marks)

Note:- Attempt any two questions. Q 1- Describe the suitable welding process for welding of Aluminum and its alloys. Q 2- List out and explain salient features of welding of cast iron. Q 3- What are the difficulties encountered during welding of copper and its alloys?

PART-C

(2x10=20 marks)

Note:- Attempt any two questions. Q 4- Explain benefits of automation in welding methodology in automobile industry. Q 5- What are the different non destructive tests used to find out the welding defects? Q 6- Write a short note on automation in welding process in different industries.

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