Download GTU BE/B.Tech 2019 Winter 5th Sem Old 151901 Manufacturing Processes Ii Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (Old) EXAMINATION — WINTER 2019

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Subject Code: 151901 Date: 09/12/2019
Subject Name: Manufacturing Processes - 11
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.

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

Q.1 (a) List the various manufacturing processes. Discuss various factors involved for 07
selection of manufacturing process for producing a given component.
(b) Define the term pattern. List out the materials commonly used for pattern. State 07

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advantages of wood as pattern material.

Q.2 (a) What is gating system? What are its functions? State types of gate with its 07
advantages.
(b) State the principle of centrifugal casting and explain its working with neat sketch. 07
OR

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(b) State and explain various types of casting defects, causes of defects and its 07
remedies.

Q.3 (a) Explain various flames produced in an Oxy-acetylene gas welding. 07
(b) Discuss with neat sketch MIG welding process. State its advantages, limitations 07
and applications.

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OR
Q.3 (a) Distinguish arc welding process and resistance welding process briefly. 07
(b) Explain laser beam welding. State its applications. 07

Q.4 (a) What is elastic and plastic deformation? Explain in details. 07
(b) List the factors influencing rolling process. Explain the effect of roller diameter 07

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and metal friction on rolling process.
OR
Q.4 (a) Discuss strain rate effect and metallurgy structure in metal working. 07
(b) Compare direct and indirect-extrusion. 07

Q.5 (a) Explain compression moulding and blow moulding process. 07

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(b) Explain with sketch and application: Cylindrical and Center less grinding process 07
for finishing operation.
OR
Q.5 (a) Enlist types of super finishing processes. Discuss the selection criteria for 07
appropriate super finishing process.

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(b) Classify the types of plastics along with the general properties of the plastics. 07

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