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

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 5th Sem Old 151901 Manufacturing Processes Ii Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? V(OLD) EXAMINATION ? SUMMER 2019
Subject Code:151901 Date:07/06/2019

Subject Name:Manufacturing Processes - II

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.

Q.1 (a) Classify manufacturing processes and discuss the criterion for selection of
manufacturing process.
07
(b) Enlist various pattern used in casting process and briefly explain any three out of
them.
07

Q.2 (a) Explain with neat sketches types of gating systems used in casting. 07
(b) List out various pattern allowances and discuss them. 07
OR
(b) State and explain various types of casting defects, causes of defects and its remedies. 07

Q.3 (a)
Explain the flame characteristics of gas welding process with a neat sketch.
07
(b) Discuss with neat sketch TIG welding process. State its advantages, limitations and
applications.
07
OR
Q.3 (a) Write a short note on: ?Electron Beam Welding? 07
(b) Explain seam welding process with the help of sketch. Differentiate seam welding
and spot welding.
07

Q.4 (a) What is re-crystallization temperature? Differentiate hot working and cold
working.
07
(b) Write short note on: ?Wire Drawing and Tube Drawing Processes?. 07
OR
Q.4 (a) List the factors influencing rolling process. Explain the effect of roller diameter and
metal friction on rolling process.
07
(b) With neat sketch explain blanking, piercing, coining, embossing, drawing and
squeezing.
07

Q.5 (a) Briefly explain injection moulding process 07
(b) Enlist super finishing process and explain Honing. 07
OR

Q.5 (a) Explain the classification of plastics with their applications. 07
(b) Explain cylindrical and center less grinding process. 07

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