Winter 2013 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–III • EXAMINATION – WINTER 2013
Subject Code: 3331901 Date: 28-11-2013
Subject Name: Manufacturing Engineering-I
Time: 02:30 pm - 05:00 pm Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is considered to be Authentic.

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Q-1 (a) Define the following terms (any FOUR) 08
(i) Ductility (ii) Rigidity (iii) Malleability (iv) Toughness (v) Brittleness

(b) Define Recrystalization temp. & State the various factors affecting on it. 06

Q-2 (a) State the comman defects in forged components & stating the reasons for those defects. 07

(b) List the hand-tools used in preparing the Mould with sketch. State its application of each. 07

OR

(b) List the names of Destructive and non-destructive test for weld joints.
 Explain any one of them.07

Q-3 (a) Define the Metal Forming process & List the different types. And State the classification of forming process. 07

(b) Explain Extrusion Process, And State its Advantages & limitations. 07

OR

Q-3 (a) State the meaning of Strip, Sheet & Plate. And Explain Three High Rolling Mill with
a neat sketch. 07

(b) Classify the Mechanical Press & List the operations which are performed on Press. Which
 are the considerable points for selection of Press? 07

Q-4 (a) Define the term “Pattern”. List the types of patterns and explain any ONE of them. 07

(b) Explain the Centrifugal Casting Process. 07

OR

Q-4 (a) Define Pattern Allowances. And State its types & Explain any TWO of them. 07

(b) Explain the Cupola Furnace with neat sketch & Label various parts with diff zone on it. 07

Q-5 (a) Explain the principle of Gas welding & state the advantages & Disadvantages. 07

(b) List the various types of Arc Welding process. And Explain Submerged Arc Welding
process with a neat sketch. 07

OR

Q-5 (a) State the Equipment & hand-tools used in Gas Welding. And Describe three types of
Flames with a neat sketch. 07

(b) State the types of Resistance Welding process. And explain Spot Welding Process with
a neat sketch. 07

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Summer 2014 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–III • EXAMINATION – SUMMER • 2014
Subject Code: 3331901 Date: 13-06-2014
Subject Name: Manufacturing Engineering-I
Time: 10:30 am - 01:00 pm Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is considered to be Authentic.

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Q.1 (a) Define the residual stress and give its effect on manufacturing processes. 07

(b) Define the following terms
1. Hardness 2. Toughness 3. Machinability 4. Ductility 07

Q.2 (a) Explain hot rolling and cold rolling process with neat sketch. 07

(b) Explain “ Three High Rolling Mill” with neat sketch. 07

OR

(b) Define following terms. 1. Ingot 2. Bloom 3. Billet 4. strip 07

Q.3 (a) Explain embossing and spinning processes with neat sketch. 07

(b) Explain wire drawing processes with neat sketch. 07

OR

Q.3 (a) List the metal forming processes and explain any one of them. 07

(b) Classify the press, list the operations perform on press and list the points
consider while selection of press. 07

Q.4 (a) List the various pattern allowances and explain them in brief. 07

(b) Explain the cupola furnace with neat sketch. 07

OR

Q. 4 (a) List out the different name of core and explain three of them. 07

(b) List out any seven casting defects, its causes and remedies. 07

Q.5 (a) Explain gas welding process with neat sketch. 07

(b) Write short-note on (1) Laser beam welding (2) Spot welding. 07

OR

Q.5 (a) Explain soldering and brazing processes. 07

(b) Explain submerge arc welding with neat sketch. 07

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Winter 2014 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
Diploma Engineering - SEMESTER–III • EXAMINATION – WINTER • 2014
Subject Code: 3331901 Date: 27-11-2014
Subject Name: Manufacturing Engineering – I
Time: 10:30 am - 01:00 pm Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. English version is considered to be Authentic.

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Q.1 Answer any seven out of ten. 14

1. Define strength

2. Factors affecting Recrystalisation Temperature are (1) ____ (2) _____ (3)____.

3. Define Manufacturing processes.

4. Suggest appropriate metal working process for (1) Bolt Head (2) Pipes
(3) Fly wheel (4) presser vessels.

5. Write Three different types of Gas flames
(1)___ (2) ___ (3) _____.

6. Differentiate Soft soldering and Hard soldering.

7. Draw four types of Weld Joints.

8. Name four types of cores.

9. Give full Name of MIG, TIG & SAW.

10. Functions of Runner & Risers in casting process.

Q.2 (a) Give meaning of the term with sketch (1) Ingots (2) Billets (3) blmoo (4) slab. 03

OR

(a) Draw neat Sketch of Three high rolling Mill & lable it. 03

(b) Classify the forging process in details. 03

OR

(b) List the Defects of forging Process. 03

(c) Explain the Punching operation with neat sketch. 04

OR

(c) Explain the Bending operation with neat sketch. 04

(d) Explain the Blank Drawing operation with neat sketch. 04

OR

(d) Explain the Wire Drawing operation with neat sketch. 04

Q.3 (a) List various factors which are consider for selection of Pattern materials. 03

OR

(a) What is pattern? Explain the nacecity of patter in casting. 03

(b) List the casting process with line diagram. 03

OR

(b) Explain preparation of mould. 03

(c) Draw neat sketch of cupola furnace & lable it. 04

OR

(c) Draw neat sketch of Induction furnace & lable it. 04

(d) State Defects in Casting with sketch. 04

OR

(d) List the hand tools with neat sketch used in molding process. 04

Q.4 (a) Give at list five application of welding process. 03

OR

(a) Write classification of non pressure welding process. 03

(b) Explain with neat sketch nacecity of -Edge preparation in welding process. 04

OR

(b) Explain with neat sketch spot welding process. 04

(c) Write safety precautions in metal joining processes. 07

Q.5 (a) Write the names of fasteners’ with their applications. 04

(b) Write short notes on Adhesive materials. 04

(c) Draw set up of Arc welding process. 03

(d) Give causes of welding defects. 03

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Summer 2015 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER III – • EXAMINATION – SUMMER 2015
Subject Code: 3331901 Date: 02 / 05/2015
Subject Name: Manufacturing Engineering - I
Time: 2:30 pm to 5:00 pm Total Marks: 70

Instructions:
1. Attempt any five questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Each question carry equal marks (14 marks)

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Q.1 (a) Define Recrystallisation Temperature. List and explain factors affecting on it. 07

(b) Define following terms:
1. Mechanical working 2. Ingot 3. Billet 4. Embossing 5. Swaging 6. Flash 7. Mis match 07

Q.2 (a) List various types of rolling mills and explain four high rolling mills with sketch. 07

(b) Define forging process and write the application and advantages of it. 07

OR

(b) Explain various forging operations in brief. 07

Q.3 (a) State different drawing operations and explain tube drawing operation with neat sketch. 07

(b) Enlist various pattern making materials. Write main five required properties of
pattern materials. 07

OR

Q.3 (a) State the procedure of Brazing and Soldering process. 07

(b) Write short note on: 1. Sweep pattern 2. Loose piece pattern. 07

Q.4 (a) List and explain different steps in core making procedure. 07

(b) Enlist different electric furnaces and explain induction furnace with neat sketch. 07

OR

Q. 4 (a) Explain investment casting process with step by step procedure. 07

(b) Explain following casting process: 1. Semi centrifugal casting 2. Die casting. 07

Q.5 (a) Draw three types of oxy-acetylene flames showing different zones on it. 07

(b) Write short note on any two: 1.Submerged arc welding 2. Thermit pressure welding
3. Adhesive joining. 07

OR

Q.5 (a) State the advantages and applications of resistance welding. 07

(b) Write safety recommendations for gas welding and cutting. 07

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Winter 2015 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – III • EXAMINATION – WINTER 2015
Subject Code: 3331901 Date: 17- 12- 2015
Subject Name: MANUFACTURING ENGINEERING -1
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.

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Q.1 Answer any seven out of ten. 14

1. Define ductility.

2. Give Factors which are affecting Recrystalisation temperature.

3. Define bending.

4. Write name of different types of Gas flames.

5. Give full Name of PAW, TIG & SAW.

6. Functions of Runner & Risers in casting process.

7. Give four advantages of casting process.

8. Name four types of cores.

9. Draw four types of Weld Joints.

10. Differentiate soldering and brazing.

Q.2 (a) Explain factors affecting the drawing Process. 03

OR

(a) What is pattern? Explain the nacecity of patter in casting. 03

(b) List various factors which are consider for selection of Pattern materials. 03

OR

(b) Define (1) Strength (2) Brittleness (3) Elasticit. 03

(c) Draw neat sketch of cupola furnace & lable it. 04

OR

(c) Enlist types of pattern material and explain any three. 04

(d) Enlist the Properties of moulding sand and explain any four. 04

OR

(d) Draw the gas welding techniques. 04

Q.3 (a) Give meaning of the term with sketch (1) Ingots (2) Billets (3) bloom (4) slab. 03

OR

(a) Enlist methods of Extrusion and explain tube extrusion. 03

(b) Enlist types of patterns and explain any two with figure. 03

OR

(b) List the Defects of forging Process. 03

(c) Explain the Punching operation with neat sketch. 04

OR

(c) Give Differences between Hot Working and Cold Working. 04

(d) Explain the Blank Drawing operation with neat sketch. 04

OR

(d) Give Differences between Hot Rolling and Rolling. 04

Q.4 (a) Give at list five application of welding process. 03

OR

(a) Explain Spot Welding. 03

(b) Draw the neat sketch of Metal Inert Gas (MIG) welding. 04

OR

(b) Give differences between welding and soldering. 04

(c) Write brief note on Defects in casting. 07

Q.5 (a) Give causes of welding defects. 04

(b) Write short notes on Adhesive materials. 04

(c) Draw set up of electron beam welding process. 03

(d) Enlist types of pattern allowances. 03

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Summer 2016 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER – III • EXAMINATION – SUMMER 16
Subject Code: 3331901 Date:12.05.2016
Subject Name: Manufacturing Engineering - I
Time: 02:30 PM TO 05:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.

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Q.1 Answer any seven out of ten. 14

1. Define manufacturing process.

2. Explain piercing process.

3. Define Hardness.

4. Define cold working process.

5. List main five step of casting..

6. List types of foundary.

7. Classify moulding sand.

8. Define welding process.

9. Listout welding defects.

10. Listout the name of destructive and non- destructive welding test.

Q.2 (a) List factor affecting the re-crystalisation temp. 03

OR

(a) State the effect of residual stress on manufacturing process. 03

(b) Give diffrence between Hot and Cold rolling process. 03

OR

(b) Explain meaning of (i) ingot (ii) bloom (iii) billet (iv) slab. 03

(c) Explain bulging operation with figure. 04

OR

(c) Explain curling operation with figure. 04

(d) Give different types of classification of types of press. 04

OR

(d) Explain any four press operations. 04

Q.3 (a) List the types of pattern and explain any one. 03

OR

(a) List advantages and limitation of casting processes. 03

(b) Explain pattern allowances. 03

OR

(b) List the types of core and explain any one. 03

(c) Explain properties of moulding sand. 04

OR

(c) Explain casting defects. 04

(d) Explain investment casting process. 04

OR

(d) Explain with neat sketch cupola furnace. 04

Q.4 (a) Differntiate between soldering ,brazing and welding. 03

OR

(a) Discribe diffrent gas flame with sketch. 03

(b) State the name of equipment used in arc welding with its function. 04

OR

(b) Explain arc welding process with neat sketch. 04


(c) Explain submurged arc welding with figure. 07

Q.5 (a) Give advantage and disadvantage and application of adhesive material. 04

(b) Write short note on Fastners. 04

(c) Write colour code of pattern as per I.S. 03

(d) Write safety precautions in welding shop. 03

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Winter 2016 Manufacturing Engineering-1 Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
DIPLOMA ENGINEERING – SEMESTER –3 • EXAMINATION – WINTER 2016
Subject Code: 3331901 Date: 19-11 -2016
Subject Name: Manufacturing Engineering-I
Time: 10:30 AM To 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.
2. Make Suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
4. Use of programmable & Communication aids are strictly prohibited.
5. Use of only simple calculator is permitted in Mathematics.
6. English version is authentic.

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Manufacturing Engineering-1 previous year question paper | 3331901 |

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One of the simplest ways to prepare for the exams is to manage your study according to a well-defined time table and allot time to every subject. It is a good practice to compare the questions of the examiners because it will give a better idea about what the examiner is looking for in the exam.

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