Name of the College : Mahatma gandhi University
Department : Production Engineering
Subject Code/Name : PE 010 802/NON CONVENTIONAL MACHINING PROCESSES
Sem : VIII
Website : mgu.ac.in
Document Type : Model Question Paper
Download Model/Sample Question Paper : https://www.pdfquestion.in/uploads/mgu.ac.in/4995-PE%20010%20802_Non%20Conventional%20Machining.pdf
MGU Conventional Machining Processes Question Paper
B.TECH DEGREE EXAMINATION, MAY 2014 :
Eight Semester
Branch: Production Engineering
Related / Similar Question Paper : MGU B.Tech Non Destructive Testing Question Paper
MODEL QUESTION PAPER :
(Regular-New Scheme 2010)
Time: Three Hours
Maximum: 100 Marks
May 2014
Part A :
Answer all questions. :
Each question carries 3 marks. :
1. Compare Non Traditional machining with conventional machining processes.
2. Explain any three parameters on working accuracy and metal removal rate in AJM.
3. Write down the process characteristics of Plasma Arc Machining.
4. Write down the applications of powder metallurgy.
5. Define rapid prototyping. Write down the basic five step process employed by rapid prototyping techniques.
(5 x 3 = 15 marks)
Part B :
Answer all questions. :
Each question carries 5 marks. :
6. Calculate the machining rate and electrode feed rate when iron is electrochemically machined, Using copper electrode and sodium chloride solution (Specific resistance=5 ohm cm). The power supply data of ECM machine used are Supply voltage =18 V D.C, Current = 5000amp. A tool work gap of 0.5 mm (constant) may be used.
7. Sketch schematic representation of ultrasonic machining process.
8. Explain principle of electron beam machining with a neat diagram.
9. Write a note on
a. Particle size.
b. Particle shape & Particle size distribution.
c. Compressibility & compatibility.
10. With a neat sketch explain the working principle of stereo lithography process.
(5×5 = 25 marks)
Part C :
Answer all questions. :
Each question carries 12 marks. :
Module I :
11. (a). Explain the chemistry of Electro Chemical Machining process.
(b). Write down limitations and application of ECM process.
Or
12. (a). Sketch and explain mechanism of metal removal in Electric Discharge Machining.
(b). Write down machine tool selection & Applications of EDM.
Module II :
13. Design a half wave steel concentrator to work at a frequency of 19 K c/s. The transducer has a section of 7.5 X 7.5 cm. Assume velocity of sound in steel C= 5 X 106 mm/sec.
Or
14. (a). With a neat diagram explain Abrasive Jet Machining.
(b). Explain advantages, limitations & applications of AJM.
Module III :
15. (a). Sketch and explain Laser Beam Machining.
(b). Explain advantages, limitations & applications of LBM.
Or
16. (a). Sketch and explain Ion Beam machining.
(b). Explain advantages, limitations & applications of Ion Beam machining.
Module IV :
17. Write a short note on methods of producing metal powders.
Or
18. Write a short note on compaction techniques.
Module V :
19. Explain Laser Engineered Net Shaping with a neat sketch.
Or
20. Explain with a neat sketch principle of operation of Fused Deposition Modeling process.
(5×12 = 60 marks)
May 2015
B.Tech. Degree Examination, :
Eighth Semester
Branch : Mechanical Engineering
PE010802 Operations Management (Regular/Supplementary)
Time : Three Hours
Part A :
Answer all questions.
Each question carries 3 marks.
1. What is the significance of forecasting?
2. What do you mean by Product Structure
3. What are the different types of Scheduling
4. Define TPM
5. Describe Flexible Manufacturing Systems
Part B :
Answer all questions.
Each question carries 5 marks.
6. Explain the different types of Decisions made in operations Management with examples
7. Explain MRP II?
8. Write down the principal assumptions of sequencing
9. What are the different types of maintenances?
10. What are the objectives of Supply chain Management
Part C :
Each question carries 12 marks.
11. Explain one quantitative and qualitative forecasting technique. Compare between these techniques? OR
12. The annual sales of a company are as follows
Year 2001 2002 2003 2004 2005
Sales 45000 56000 78000 46000 75000
Find the trend value in each year. Also estimate the sales of 2006
13. Explain the 3 major input of MRP process? OR
14. How is a MPS created and how is it used?
15. Consider a 3 machine and 5 job flow shop problem as shown in table Processing Time
Job Machine 1 Machine 2 Machine 3
1 10 10 12
2 12 8 20
3 16 6 14
4 12 4 20
5 20 8 8
a) Check whether Johnson’s algorithm can be extended to this problem
b)If yes find the optimal sequence and corresponding makespan OR