Download GTU BE/B.Tech 2018 Winter 5th Sem Old 151901 Manufacturing Processes Ii Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem Old 151901 Manufacturing Processes Ii Previous Question Paper

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Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (OLD) EXAMINATION ? WINTER 2018
Subject Code:151901 Date: 27/11/2018

Subject Name: Manufacturing Processes - II

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a)
What is pattern? State the purpose of pattern. Name various factors which
are considered for selection of pattern material.
07
(b) Define and Discuss: Fusion zone and Heat affected zone 07

Q.2 (a) Describe forge welding process in detail. 07
(b) Explain steps involved in investment casting with its advantages and
limitations.
07
OR
(b) Explain: Straight polarity and reverse polarity. Explain also effect of polarity on
weld quality.
07

Q.3 (a) Why oxy-acetylene flame cannot be used inside of pipes or structures
subjected to oxygen depletion?
07
(b) Describe shell moulding process. 07
OR
Q.3 (a) Explain theory of rolling with neat sketch and also explain forces involved
in hot rolling
07
(b) Explain: Drop forging and press forging. 07

Q.4 (a) Distinguish between wire drawing and tube drawing in detail. 07
(b) Explain: Metal spinning with its advantages and application 07
OR
Q.4 (a) Explain different shearing operations 07
(b) Explain: (i) Ingot (ii) Bloom (iii) Slab (iv) Billet
07

Q.5 (a) What do you understand by ?Roll Piercing?? Explain with a simple sketch. List
advantages of the same
07
(b) Discuss: (i) Barrel tumbling (ii) Burnishing (iii) Buffing 07
OR
Q.5 (a) Discuss Transfer moulding and Injection Moulding with neat sketch 07
(b) Explain how grain structure is affected during hot cold working 07

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