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Production Process 1 Question Paper - Dec 18 - Mechanical Engineering (Semester 3) - Mumbai University (MU)
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written 4.9 years ago by
rutujakhilari12345
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Production Process 1 - Dec 18
Mechanical Engineering (Semester 3)
Total marks: 80
Total time: 3 Hours
INSTRUCTIONS
(1) Question 1 is compulsory.
(2) Attempt any three from the remaining questions.
(3) Draw neat diagrams wherever necessary.
Write a short note on any four of the following
1.a. Compare brazing and soldering. (5 marks) 00
1.b.
$CO_2$ moulding.
(5 marks)
00
1.c.
Thread rolling.
(5 marks)
00
1.d.
Explosive welding.
(5 marks)
00
1.e.
Lapping and Honing.
(5 marks)
00
2.a.
With a neat sketch explain the principle and working of thermit welding. Also discuss its advantages, limitations and application.
(8 marks)
00
2.b.
Differentiate between the open loop and close loop system.
(6 marks)
00
2.c.
Explain the types of flames used in gas welding.
(6 marks)
00
3.a.
Describe the desirable properties of pattern materials.
(8 marks)
00
3.b.
Describe machining the operations performed on lathe machine.
(6 marks)
00
3.c.
What are automatic machines? Write its classification.
(6 marks)
00
4.a.
Describe the classification, selection procedure and application of drilling machine.
(8 marks)
00
4.b.
Explain blow moulding process with a neat sketch.
(6 marks)
00
4.c.
Differentiate between pattern and core box.
(6 marks)
00
5.a.
Discuss various defects found in rolled parts.
(8 marks)
00
5.b.
Define weldability and describe the factors affecting it.
(6 marks)
00
5.c.
Differentiate between hot working and cold working processes.
(6 marks)
00
6.a.
With the help of neat sketch explain the gating system in casting process.
(8 marks)
00
6.b.
Define the terms 'Spread', 'Elongation', 'Draft' with respect to rolling process.
(6 marks)
00
6.c.
Compare thermoplastics and thermosetting plastics.
(6 marks)
00
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