Yashwantrao Chavan Maharashtra Open University 2006 Certification TML Engineering Materials - II - Question Paper

TML064/EE/20070818
Engineering Materials - II
Time : 180 minutes Marks : 100
Instructions for the students :
1. All ques. are compulsory.
2. “Long ans kind ques. (LAQ)” is a supply kind ques. of 20 marks,
which require typical ans of about 60-80 lines in about 32-40 minutes.
3. “Short ans kind ques. (SAQ)” is a supply kind ques. of five marks
,which require typical ans of about 15-20 lines in about 08-10 minutes.
4. Use of non-programmable kind of scientific calculator is allowed.
5. Draw neat diagrams wherever necessary.
6. presume suitable data if necessary.

Long ans kind ques. (LAQ’s)

1. (a) discuss the factors considered for tool steel selection.
(b) discuss any 5 basic kinds of corrosion.

2. (a) discuss Martensitic stainless steel.
(b) discuss the different heat treatments for Gray Iron.
(c) What is powder metallurgy ?

3. (a) Write a short note on Brass.
(b) discuss the chemical vapour deposition coating.
(c) Write the advantages of Aluminium and Aluminium Alloys
over steel.

4 (a) discuss the major selection factors of material.
(b) How to prevent metal to metal wear ?
16
4
Short ans kind ques. (SAQ’s)

5. State the manufacturing defects of tool steel. 5
6. Compare the stress-strain curves for steel and gray cast iron. 5
7. Write a note on High Energy Processes (Ion implantation). 5
8. Write a short note on Stress Concentrations.

Earning:   Approval pending.