Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 5th Sem 3152007 Manufacturing Technology Previous Question Paper
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?V (NEW) EXAMINATION ? WINTER 2020
Subject Code:3152007 Date:01/02/2021
Subject Name:Manufacturing Technology
Time:10:30 AM TO 12:30 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) Why the following allowances are provided on the patterns in
03
sand molding. (i) Draft (ii) Contraction (iii) Shaking.
(b) What is the role of electrode coating in shielded metal arc?
04
(c) What are the common defects of casting? State their causes and
07
remedies.
Q.2
(a) What is difference between nozzles of oxy-acetylene gas
03
welding process and oxy-acetylene gas cutting process? Why?
Explain with help of neat sketches.
(b) Why the properties like permeability, compressive strength,
04
hardness and flow ability required in molding sand? Explain
with appropriate reasons for each of them.
(c) Write a short note on Gas Welding with necessary sketches.
07
Q.3
(a) Define following terms:- (i) Ingot (ii) Bloom (iii) Billet (iv)
03
Slab.
(b) Write a short note on AJM.
04
(c) What are the different forging operations? Explain any two
07
with neat sketch.
Q.4
(a) Differentiate between Punching and blanking.
03
(b) Discuss with neat sketch following core:- (i) Horizontal core (ii)
04
Balanced Core.
(c) Explain difference between TIG and MIG welding process.
07
Q.5
(a) Describe the different functions performed by cutting fluids
03
during machining operations.
(b) Give complete detail to carry out following alignment tests:
04
1. Line joining two centers parallel with lathe bed
(c) Write down the types of milling machines. Explain column
07
and knee type with neat sketch.
Q.6
(a) Explain vertical Boring Machine Operations.
03
(b) Differentiate between the quick return mechanisms of shaper
04
machine and planar machine.
(c) Write down classification of Drilling Machine. Explain upright
07
Drilling machine with figure.
1
Q.7
(a) What is deep hole drilling operation? What are the difficulties
03
commonly observed in deep hole drilling operation?
(b) Define operations:- (i) Lapping (ii) Honing (iii) polishing (iv)
04
Buffing.
(c) Explain single point cutting tool Geometry.
07
Q.8
(a) What is called as plunge cut grinding? Explain with neat
03
sketch.
(b) List out different specifications of lathe machine and describe
04
them in brief.
(c) Explain classification of manufacturing process.
07
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This post was last modified on 04 March 2021