Download VTU BE 2020 Jan ME Question Paper 15 Scheme 3rd Sem 15MEA305 Metal Casting and Welding

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Third Semester B.E. Degree ExaminaticiRi
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D0,2019/Jan.2020
Metal Casting and Welding

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E35A/15MEA305
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Time: 3 hrs. Max. Marks: 80
Note: Answer any FIVE full questions, choosing ONE full question from each module.
Module-1

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1 a. Define Manufacturing Process. Briefly explain the classification of Manufacturing
Processes. (07 Marks)
b. Explain different pattern allowances with neat sketches. (09 Marks)
OR
2 a. Explain the different properties of Moulding Sand.

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b. Explain the following processes:
(i) Sweep Moulding
(ii) Sand Slinger
Module-2
3 a. With a neat sketch, explain coreless induction furnace and mention its merits and demerits.

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(08 Marks)
b. Sketch and explain construction and operation of Cupola. (08 Marks)
OR
4 a. Explain Gravity die casting with neat sketch.
b. With neat sketches, explain thixo casting and slush casting.

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Module-3
5 a. Explain Mechanism of Solidification. (08 Marks)
b. Explain the different types of Nucleation. (08 Marks)
OR
6 a. Define the term Defect. Explain the different defects in casting. What are the causes and

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remedies? (08 Marks)
b. Define the term degasification. With neat sketch explain any two methods of degasification.
(08 Marks)
Module-4
7 a. With neat sketches explain T1G and MIG welding. (10 Marks)

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b. With neat sketch explain Thermit welding process. Mention its merits and demerits.
(06 Marks)
OR
8 a. Explain Projection welding process with a neat sketch, list out advantages and
disadvantages. (08 Marks)

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b. Explain briefly the following :
(i) Seam Welding (ii) Explosive Welding.
(08 Marks)
(06 Marks)
(10 Marks)

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(08 Marks)
(08 Marks)
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Third Semester B.E. Degree ExaminaticiRi
2
D0,2019/Jan.2020
Metal Casting and Welding
E35A/15MEA305

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Time: 3 hrs. Max. Marks: 80
Note: Answer any FIVE full questions, choosing ONE full question from each module.
Module-1
1 a. Define Manufacturing Process. Briefly explain the classification of Manufacturing

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Processes. (07 Marks)
b. Explain different pattern allowances with neat sketches. (09 Marks)
OR
2 a. Explain the different properties of Moulding Sand.
b. Explain the following processes:

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(i) Sweep Moulding
(ii) Sand Slinger
Module-2
3 a. With a neat sketch, explain coreless induction furnace and mention its merits and demerits.
(08 Marks)

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b. Sketch and explain construction and operation of Cupola. (08 Marks)
OR
4 a. Explain Gravity die casting with neat sketch.
b. With neat sketches, explain thixo casting and slush casting.
Module-3

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5 a. Explain Mechanism of Solidification. (08 Marks)
b. Explain the different types of Nucleation. (08 Marks)
OR
6 a. Define the term Defect. Explain the different defects in casting. What are the causes and
remedies? (08 Marks)

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b. Define the term degasification. With neat sketch explain any two methods of degasification.
(08 Marks)
Module-4
7 a. With neat sketches explain T1G and MIG welding. (10 Marks)
b. With neat sketch explain Thermit welding process. Mention its merits and demerits.

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(06 Marks)
OR
8 a. Explain Projection welding process with a neat sketch, list out advantages and
disadvantages. (08 Marks)
b. Explain briefly the following :

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(i) Seam Welding (ii) Explosive Welding.
(08 Marks)
(06 Marks)
(10 Marks)
(08 Marks)

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(08 Marks)
1 of 2
15M E35A/15M EA3k.,
Module-5
9 a.

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What is meant by HAZ? Explain the various regions of HAZ in low carbon steel during
welding.
(08 Marks)
b. Discuss the various types of welding defects their causes and remedies. (08 Marks)
OR

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10 a. Differentiate between soldering and Brazing list out merits, demerits and applications of
these two processes. (08 Marks)
b. Explain ultrasonic inspection method to test welded part with advantages and disadvantages.
(08 Marks)
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