Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 6th Sem 2162507 Allied Manufacturing Technique Previous Question Paper
Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VI (NEW) EXAMINATION ? WINTER 2020
Subject Code:2162507 Date:29/01/2021
Subject Name:Allied Manufacturing Technique
Time:02:00 PM TO 04:00 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) Describe THREE fundamental differences between conventional and
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unconventional machining process.
(b) Define the functions of transducers in ultrasonic machining. Enlist the major four
04
elements of ultrasonic machining equipment?
(c) What is a dielectric? Explain the process in which it is used.
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Q.2 (a) What are essential characteristics of an electrolyte used in ECM process?
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(b) Explain what is meant by non-transferred and transferred mode of plasma arc.
04
(c) In which unconventional process Ruby Rod is used? Explain the process in Detail
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with neat sketch.
Q.3 (a) Distinguish between Semi-automates and Centre Lathe.
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(b) What is the difference between' Saddle type turret lathe' and `Ram type turret lathe'.
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(c) What do you mean by tool layout? Draw the tool layout for semi-automatic lathe of
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following component shown in figure.
Q.4 (a) For which type of product "Automatic Cutting off Lathe" is used? Enlist operations
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that can be performed on this machine.
(b) Elaborate TWO specific characteristic and application of " Swiss type automatic
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lathe"
(c) Give a brief classification of automatic lathe machine.
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Q.5 (a) What is Screw thread Rolling?
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(b) With the neat sketch of thread terminology define (i) Pitch (ii) Crest (iii) Helix Angle
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(iv) Nominal Diameter.
(c) How screw thread micrometer differs from ordinary micrometer? Explain screw
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thread inspection with neat sketch.
Q.6 (a) Explain function of Thread Chasing Dial while cutting screw thread on lathe
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machine.
(b) How "Collapsible Tap" and "Self-Opening Die Head" improves productivity?
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(c) Describe SEVEN general application of screw thread with example
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Q.7 (a) What are different casting processes through which Gears can be manufactured?
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(b) Describe any ONE Gear Finishing operation.
04
(c) Explain Gear Shaping operation on Gear Shaper Machine with neat sketch.
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Q.8 (a) How gear teeth are manufactured with the help of rolling.
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(b) Describe any one process of preforming of gears considering Gear Forming.
04
(c) With the diagram of "Cutting action of hobber" explain Gear hobbing and its merits
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as well as limitations
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This post was last modified on 04 March 2021