Technology of Non-Ferrous Metals & Non-Metallic Materials B.E Question Paper : jaduniv.edu.in

Name of the University : Jadavpur University
Department : Metallurgical Engineering
Degree : B.E
Subject Name : Technology Of Non-Ferrous Metals & Non-Metallic Materials
Year/Sem : IV/I
Website : jaduniv.edu.in
Document Type : Model Question Paper

Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/dspace.jdvu.ac.in/5460-Technology%20of%20Non-Ferrous%20metals.pdf

Technology of Non-Ferrous Metals Question Paper :

B. Met. Engineering Final Examination, 2008 :
( 1st Semester )
Technology Of Non-Ferrous Metals & Non-Metallic Materials :

Related : Jadavpur University Hydro & Electro Metallurgical Processes B.E Model Question Paper : www.pdfquestion.in/5459.html

Time : Three hours
Full Marks : 100
Attempt any five question :
All question carry equal marks :
1. a) What are the following and where are they used ? 20
(i) 1100-H14 (ii) 5182-H12 (iii) 3004-H16 (iv) 2024-T6
b) Select an aluminium alloy to contain lequid hydrogen fuel in a tank. Explain.
c) Design a casting process to produce automotive wheels having reduced weight and consistent and uniform properties.

d) A steel cable 0.5 inch diameter has a yield strength of 70,000 p.s.i. The density of steel is about 7.87 gm/cm3.

Determine (i) the maximum load that the steel cable can support (ii) the diameter of a coldworked (3004-H18) alloy required to support the same load as the steel and weight per foot of the steel cable versus the aluminium cable. [ Density of the aluminium alloy = 2.70 gm/cm3 yield strength of the aluminium alloy = 36,000 p.s.i. ]

2. a) Give the composition, properties and application of the following :
(i) yellow brass (ii) Monel (iii) Aluminium bronze (iv) zamak
b) Design the contrets for a switch or relay that opens and closes a high current electrical circuit. Give examples.

c) What are some of the major applications of magnesium & titanium alloys.
3. a) Select suitable alloy with reasons, a heat exchanger for the petrochemical industry.
b) Select suitable materials for a high performance jet engine turbine blades.
c) What are super alloys ? Give mechanism of the strengthening of super alloys.

4. a) What are the major advantages of plastics compared to ceramics, glasses and metallic materials ?
b) Compare and contrast properties of thermoplastic, thermosetting materials and elastomers.
c) Which plastics are easiest to recycle ? Which plastics are the most difficult ? Explain.

d) What is a particulate composite ?
e) What is a nano composite ? How can steels containing ferrite and martensites be described as composites ? Explain.

5. a) Explain briefly how carbon fibres are made.
b) What is the difference between a fiber and a whisker ?
c) What is a fibre reinforced composite ? What fibre renforcing materials are commonly used ? In a fibre reinforced composite what is the role of the matrix ?

6. a) Give examples of some ceramic materials that are used to make lasers.
b) What is the difference between a thin film and a coating ?
c) State applications of silica in the form of a fiber and a fine particle.

d) A Cemented Carbide Cutting tool used for machining contains 75 wt% wc, 15 wt% Tic, 5 wt% Tac and 5 wt% CO. Estimate the density of the composite. Given : rwc =15.77 gm/cm3, Tic r = 4.94 gm/cm3 Tac r =14.5 gm/cm3, CO r = 8.90 gm/cm3

7. Write a brief technical note on the following : (any two)
(i) Durability of concrete (ii) Polymer degradation
(iii) Metal matrix composites (iv) Smart fibre composite