Name of the University : Annamalai University
Department : Welding Engineering And Technology
Degree : Diploma
Subject Name : Welding Metallurgy And Weldability Testing
Website : annamalaiuniversity.ac.in
Document Type : Old Question Paper
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Annamalai Welding Metallurgy Question Paper
Diploma Examination December 2013. : (Welding Engineering And Technology)
Time : Three hours
Maximum : 100 marks
Related : Annamalai University Allied & Advanced Welding Techniques Diploma Question Paper : www.pdfquestion.in/6111.html
Answer any FIVE questions. :
All questions carry equal marks. : (5 * 20 = 100)
1. (a) Explain in detail about heat flow in welding.
(b) Discuss various heat treatment methods.
2. (a) Explain in detail about the weldability of carbon steels.
(b) Briefly discuss problems occurred while welding duplex stainless steels.
3. (a) Explain in detail about difficulties found in welding of copper and its alloys.
(b) How do you define welding procedure? Why it is important to draw up welding procedure before the welding is carried out?
4. (a) Write down the factors which may promote hot cracking. Explain reheat crack.
(b) Explain in detail about the stress relieving techniques.
5. (a) Explain murex test and varestraint test.
(b) Describe in detail about controlled severity test.
6. (a) Write short notes on various microstructure produced in weldments.
(b) Briefly discuss about problems occurred while welding Q & T steels.
7. (a) Briefly discuss about significance of Schaffler diagram.
(b) Write about various service weldability tests. Explain any two.
8. (a) Explain the basic steps involved in eddy current testing.
(b) What are the different types of NDT testing? Explain radiography testing.
Diploma Examination – 2013
Answer any FIVE questions. :
All questions carry equal marks. (5 * 20 = 100)
1. (a) Explain in detail about heat flow in welding.
(b) Discuss various heat treatment methods.
2. (a) Explain in detail about the weldability of carbon steels.
(b) Briefly discuss problems occurred while welding duplex stainless steels.
3. (a) Explain in detail about difficulties found in welding of copper and its alloys.
(b) How do you define welding procedure? Why it is important to draw up welding procedure before the welding is carried out?
4. (a) Write down the factors which may promote hot cracking. Explain reheat crack.
(b) Explain in detail about the stress relieving techniques.
5. (a) Explain murex test and varestraint test.
(b) Describe in detail about controlled severity test.
6. (a) Write short notes on various microstructure produced in weldments.
(b) Briefly discuss about problems occurred while welding Q & T steels.
7. (a) Briefly discuss about significance of Schaffler diagram.
(b) Write about various service weldability tests. Explain any two.
8. (a) Explain the basic steps involved in eddy current testing.
(b) What are the different types of NDT testing? Explain radiography testing.
Diploma Examination – 2012
Maximum: 100 Marks
All questions carry equal marks :
Answer any Five questions: (5 * 20 = 100)
1. a)Draw the TTT diagram and explain the procedure for drawing TTT diagram. (10)
b)Explain CCT diagram with a neat sketch. (10)
2. a) What are the problems encountered in welding of austenitic, martensitic and ferritic stainless steel. (10)
b) Write the significance of Schaffler and Delong diagrams. (10)
3. a) Write the welding procedure for aluminium alloys. (10)
b) What are the problems involved in welding of titanium alloys. Explain. (10)
4. a) Explain the X-ray diffraction method for the measurement of residual stress. (10)
b) What are the various methods of controlling distortions in weldments? Explain. (10)
5. a) Explain the radiography and Ultrasonic Non- Destructive tests. (10)
b) Write a note on Ring weldability and hot ductility test. (10)
6. a) Explain solution treatment and Aging. (10)
b) Write a note on weldability of carbon steels. (10)
7. a) Explain the precautions and welding procedure in the welding of copper alloys. (10)
b) Write short notes on i) Chevron cracks ii) Lamellar cracks (10)
8. a) Explain the Tekken test and longitudinal bead weld test. (10)
b) Draw the iron carbon diagram and explain its salient points. (10)