Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2172112 Physical Metallurgy Of Special Purpose Non Ferrous Metals And Alloy Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2172112 Date:21/01/2021
Subject Name:Physical Metallurgy of Special Purpose Non-ferrous Metals
and Alloys
Time:10:30 AM TO 12:30 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
MARKS
Q.1 (a) Explain the temper designation of Aluminum alloys.
03
(b) Justify: Dezincification is not a problem for red alpha Brass.
04
(c) Using Pb-Sb Phase diagram describe the characteristics of Lead- Babbits.
07
Give typical composition and applications.
Q.2 (a) Justify: Copper is metal of civilization.
03
(b) Give the composition, properties and applications of 2024 and 1100
04
aluminum alloys.
(c) Using Al-Cu phase diagram explain general description of Al-Cu alloy
07
system.
Q.3 (a) Describe the microstructure and applications of Electrolytic tough pitch
03
(ETP) Copper.
(b) Give the composition, properties and applications of Constantan and Nickel
04
Silvers.
(c) Using Cu-Sn phase diagram explain effect of Sn on properties of Cu in
07
Bronze.
Q.4 (a) Justify: Gold can be used for dental capping.
03
(b) What is season cracking in brass? How it is avoided.
04
(c) Describe the composition, properties and applications of Copper-Nickel
07
alloys. Explain effect of Ni on properties of Copper-Nickel alloys.
Q.5 (a) Explain the Precipitation hardening process for Magnesium alloys.
03
(b) List the limitations of convention Monel and describe the ways to
04
encountered these.
(c) Give the composition and properties. Explain the Solution treatment and
07
aging process with time and temperature range for Waspalloy.
Q.6 (a) Give the composition and properties of AZ91A Magnesium alloy.
03
(b) Describe the methods to increase high temperature strength of Mg alloys.
04
(c) Describe the heat treatment for Ti6-Al4-V alloy.
07
1
Q.7 (a) Give the Characteristics and applications of Zirconium rare metals and their
03
alloys.
(b) Describe electrical applications of precious metals.
04
(c) Give typical composition, properties, limitations and applications of lead
07
base bearings.
Q.8 (a) Give the Characteristics and applications of Niobium rare metals and their
03
alloys.
(b) Give properties and applications of tin base bearings.
04
(c) Write a note on heat treatment of Zinc alloys.
07
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This post was last modified on 04 March 2021