Diploma-Diploma Mechanical Engineering 3rd Sem Materials Technology(Gujarat Technological University-2013)
Thursday, 29 August 2013 07:22anudouglas
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGG.- SEMESTER–III EXAMINATION – WINTEER 2012
Subject code: 331903 Date: 04/01/2013
Subject Name: Materials Technology
Time: 2:30 pm – 5:00 pm Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is Authentic
Q.1 (a) State the importance of different mechanical, electrical & chemical properties in engineering applications. 07
(b) Define space lattice & Unit cell. Draw B.C.C and F.C.C. unit cells with examples. 07
Q.2 (a) Explain “Principle and working of metallurgical microscope” with neat sketch.07
(b) What is and alloy? Draw Fe-C alloy diagram. 07
OR
(b) Discuss different constituent’s phases in Fe- C diagram. 07
Q.3 (a) Discuss different alloys and applications of Cu based alloys. 07
(b) State difference between Gray cast iron and White cast iron. 07
OR
Q.3 (a) Discuss different alloys and applications of Al based alloys. 07
(b) Suggest materials for 1) electrical winding 2) piston 3) Bush 4) chisel 5) non stick cooking 6) pizo materials. (07)
Q.4
(a) Draw T.T.T. diagram and explain it. 07
(b) Discuss case carburizing process in detail. 07
OR
Q. 4 (a) State importance of heat treatment process? Enlist different heat treatment processes. 07
(b) Discuss refractory materials and its applications. 07
Q.5 (a) Define powder metallurgy, state its advantages. 07
(b) Give classification of non metallic materials. 07
OR
Q.5 (a) What is non destructive testing? Explain X-ray technique. 07
(b) Discuss I.S. Code for steel with suitable examples and give full form of ASTM,SAE,ASME,BEE
| Earning: ₹ 6.02/- |
