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Seat No.: Enrolment No.:
GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING SEMESTER III • EXAMINATION SUMMER 2018
Subject Code: 330202 Date: 02-05 -2018
Subject Name: Manufacturing Process Material Technology
Time: 02:30 PM TO 05:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)
Q.1

State about safety precautions to be followed while performing welding.
07



07

Differentiate between hot working and cold working process.




Q.2

Explain gas welding process with neat sketch.
07



07

List mechanical properties of metal and explain any two.




OR

Explain about types of production.
07


Q.3

Define heat treatment process and State its objectives.
07



07

State advantages and disadvantages of forging process.




OR
Q.3

Explain various types of patterns used in casting process.
07



07

State various casting defects, its causes and remedies.




Q.4

Draw a neat sketch of lathe machine. Describe its major components.
07



07

List various operations performed on lathe machine. Explain any two with sketch.




OR
Q.4

Explain quenching media for heat treatment of steel.
07
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07

State factors to be considered while selecting material.




Q.5

Differentiate between up milling and down milling process.
07



07

Write short note on power press.




OR
Q.5

List various surface finishing operations. Explain any one in detail.
07



07

Give classification of drilling machine.