Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 7th Sem 2172010 Automated Manufacturing I Previous Question Paper
Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VII (NEW) EXAMINATION ? WINTER 2020
Subject Code:2172010 Date:21/01/2021
Subject Name:Automated Manufacturing - I
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) Explain three types of Automation.
03
(b) Write down advantages, limitations and applications of NC machine
04
tools.
(c) Write a manual part program for finishing a forged component, as
07
shown in the figure. Assume the speed and feed on the turning centre as
400 r.p.m and 0.35 mm/rev respectively. Assume 1 mm material is to be
removed radially from external diameter.
Q.2 (a) What is an Automated guided Vehicle system?
03
(b) Briefly differentiate between rail-guided vehicles and automated guided
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vehicles.
(c) Write a CNC program using appropriate G and M code to turn compo-
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nent, as shown in figure. Raw material: MS 32x50 mm; cutting speed:
V=40 m/min; feed: f=0.1 mm/rev. Assume suitable depth of cut.
Q.3 (a) Define rapid prototyping and Enlist its applications.
03
(b) What is the advantage of a vertical storage carousel over a horizontal
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1
carousel?
(c) Explain with Example the reasons for implementation of automation in
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industries?
Q.4 (a) What is process planning? Enlist the two basic approaches in CAPP.
03
(b) What are the basic components of CNC system? Discuss any two of
04
them.
(c) With suitable sketch explain closed loop and open loop control system.
07
Q.5 (a) What is canned cycle?
03
(b) Classify the CNC machine on the basis of Programming methods.
04
(c) Explain the principle of CMM. Describe the methods of operating and
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controlling a CMM.
Q.6 (a) List down limitations of Rapid prototyping.
03
(b) Draw a neat sketch of recirculating ball screw. State its advantages.
04
(c) What is ATC? Explain how tool is changed in CNC machine with suit-
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able sketch.
Q.7 (a) What is selective laser sintering (SLS)?
03
(b) Differentiate between machine zero and part zero.
04
(c) What is the USA principle? List and explain the ten strategies for auto-
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mation and process improvement.
Q.8 (a) State advantages of NC, CNC over Conventional machine tools.
03
(b) What are the advantages of Automated Guided Vehicles?
04
(c) Explain the functions of the following G codes.
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G81,G94,G02,G74,G78
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This post was last modified on 04 March 2021