Code No: R2021033 R20 SET - 1

II B. Tech I Semester Regular/Supplementary Examinations, January-2023

PRODUCTION TECHNOLOGY
(Mechanical Engineering)
Time: 3 hours Max. Marks: 70
Answer any FIVE Questions, each Question from each unit
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~~
UNIT-I
1 a) What is a pattern? Explain the following patterns with neat sketch: [7M]
(i) Cope and drag pattern,
(ii) Sweep pattern,
(iii) Segmental pattern,
(iv) Loose piece pattern.
b) Explain any two types of moulding methods with neat sketches. [7M]

OR
2 a) Define core. What are the characteristics of core. [7M]
b) How are moulding sands classified? Explain. [7M]

UNIT-II
3 a) Define gating system. What are the various design requirements of a gating [7M]
system.
b) Explain the process of cooling and solidification in casting. [7M]

OR
4 a) What are various methods of melting the metals for casting? [7M]
b) What is die-casting? Mention its advantages, limitations and applications. [7M]

UNIT-III
5 a) Describe thermit welding with neat diagram. Write its advantages, disadvantages [7M]
and applications.
b) Describe plasma arc welding with neat diagram. Write its advantages, [7M]
disadvantages and applications.
OR
6 a) What are the various Nondestructive methods conducted to test the welded [7M]
materials?
b) What is oxy-acetylene welding? Draw and explain forward and backward [7M]
welding.
UNIT-IV
7 a) What is forging? Explain drop and roll forging in detail. [7M]
b) What is extrusion process? Mention its advantages, disadvantages and [7M]
applications.
OR

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Code No: R2021033 R20 SET - 1

8 a) Describe hot working process. What are advantages, limitations of hot working [7M]
process?
b) Describe wire drawing operation in detail also mention the defects in wire [7M]
drawing operation.
UNIT-V
9 a) Explain the process of deep drawing with neat sketch. [7M]
b) Explain the process of rubber pad forming. Write its advantages, disadvantages. [7M]

OR
10 a) Explain the process of stretch forming with neat sketch. [7M]
b) What are the various types of presses? Explain detail. [7M]

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Code No: R2021033 R20 SET - 2

II B. Tech I Semester Regular/Supplementary Examinations, January-2023

PRODUCTION TECHNOLOGY
(Mechanical Engineering)
Time: 3 hours Max. Marks: 70
Answer any FIVE Questions, each Question from each unit
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~~
UNIT-I
1 a) Define pattern. What are the requirements of a good pattern? [7M]
b) Discuss briefly moulding machines. [7M]
OR
2 a) Explain various steps involved in core making process. [7M]
b) What are the various tests conducted to test the moulding sand? [7M]
UNIT-II
3 a) Draw and explain the construction and working of cupola furnace. [7M]
b) What is the Importance of Risel? Explain different types of Risel. [7M]
OR
4 a) Explain any two types of furnaces for metal melting. [7M]
b) Explain in detail about the semi-centrifugal and centrifuging casting. [7M]
UNIT-III
5 a) What is the basic principle of arc welding? Explain shielded arc welding in [7M]
detail.
b) What is soldering? Explain the procedure of soldering. Mention its advantages, [7M]
disadvantages.
OR
6 a) Explain the weldability of pure metals and alloys. [7M]
b) Define welding. What are the various types of welded joints? Mention the power [7M]
characteristics of welding machine.
UNIT-IV
7 a) Discuss the types of forging operation. [7M]
b) What is Impact Extrusion? Mention the process in detail with its applications. [7M]
OR
8 a) What is rolling? Explain the principle and process of rolling in detail. [7M]
b) Explain hydrostatic extrusion with neat sketch. Write its advantages and [7M]
applications
UNIT-V
9 a) Explain the principle and working of explosive forming with neat sketch. [7M]
b) Explain the process of bending with neat sketch. [7M]
OR
10 a) Explain various sheet metal operations in brief. [7M]
b) Enumerate and explain various commonly used machines in sheet metal shop. [7M]

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Code No: R2021033 R20 SET - 3

II B. Tech I Semester Regular/Supplementary Examinations, January-2023

PRODUCTION TECHNOLOGY
(Mechanical Engineering)
Time: 3 hours Max. Marks: 70
Answer any FIVE Questions, each Question from each unit
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~~
UNIT-I
1 a) Briefly explain the process of ‘mould making’. [7M]
b) Mention various properties of moulding sand. [7M]

OR
2 a) Explain any four pattern allowances briefly with sketches. [7M]
b) Explain any four of the following cores: [7M]
(i) Green sand cores,
(ii) Loam cores,
(iii) Oil sand cores,
(iv) Dry sand cores.
UNIT-II
3 a) Describe direct arc and indirect arc furnaces with sketches. [7M]
b) Describe investment casting with neat diagram. Mention its advantages and [7M]
disadvantages.
OR
4 a) What is a riser? What are the various requirements of a riser? Mention the [7M]
location of the riser in the gating system.
b) Explain the centrifugal casting with neat sketch. [7M]

UNIT-III
5 a) What is brazing? Explain the process involved in brazing with its advantages [7M]
and limitations.
b) Describe resistance spot welding with neat diagram. What are the process’s [7M]
advantages, limitations and applications.
OR
6 a) Describe MIG welding process with neat sketch. Mention its advantages, [7M]
disadvantages and applications.
b) Draw and explain the friction welding process. Mention its advantages and [7M]
limitations.

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Code No: R2021033 R20 SET - 3

UNIT-IV
7 a) Define forging. What are the various forging hammers that are employed in [7M]
process of forging?
b) What is the process of Tube drawing? Explain the principle of Tube drawing in [7M]
detail.
OR
8 a) Explain the terms ‘recovery’, ‘recrystallisation’, and ‘grain growth’ in detail. [7M]
b) Explain the principle and process of cold working. Write its advantages, [7M]
limitations.
UNIT-V
9 a) Explain the process of blanking in detail. [7M]
b) Explain the process of electro-magnetic forming with neat sketch. [7M]

OR
10 a) What is coining? Enumerate the process of coining. [7M]
b) What is spring back effect? How to prevent it? Explain. [7M]

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Code No: R2021033 R20 SET - 4

II B. Tech I Semester Regular/Supplementary Examinations, January-2023

PRODUCTION TECHNOLOGY
(Mechanical Engineering)
Time: 3 hours Max. Marks: 70
Answer any FIVE Questions, each Question from each unit
All Questions carry Equal Marks
~~~~~~~~~~~~~~~~~~~~~~~~~
UNIT-I
1 a) Discuss hand and machine moulding. Mention their advantages and [7M]
disadvantages.
b) What do you understand by the terms ‘core box’ and ‘core print’? Explain. [7M]

OR
2 a) Define pattern. Explain following patterns with neat sketch: [7M]
(i) Match plate pattern,
(ii) Gated pattern,
(iii) Split pattern,
(iv) Skeleton pattern
b) Define casting. Why casting is preferred over other manufacturing methods? [7M]

UNIT-II
3 a) Explain the process of shell moulding. What are its advantages, disadvantages, [7M]
applications?
b) Discuss various casting defects. [7M]

OR
4 a) Define gating system. What are the basic elements of a gating system? Explain [7M]
with neat sketch.
b) With neat sketch, explain how the solidification takes place using chills. [7M]

UNIT-III
5 a) Explain electroslag welding in detail with diagram. Mention its applications. [7M]
b) Describe the classification of electric arc welding. Explain atomic hydrogen [7M]
welding with neat sketch.
OR
6 a) What is submerged arc welding? Explain it with neat sketch. Mention its [7M]
advantages and limitations.
b) What is heat affected zone in welding? How its effects the quality of the weld [7M]
bead?

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Code No: R2021033 R20 SET - 4

UNIT-IV
7 a) Draw and explain Indirect extrusion process. Mention its advantages, [7M]
disadvantages and applications.
b) What are the various forging defects? Explain in brief. [7M]

OR
8 a) Compare hot and cold working process. [7M]
b) What is rolling process? Explain various types of rolling processes in brief. [7M]

UNIT-V
9 a) What is the various press tools employed in sheet metal forming process? [7M]
b) Describe the process of electro-hydraulic forming with neat sketch. [7M]

OR
10 a) Differentiate between blanking and piercing operations with a suitable sketch. [7M]
b) What are various types of HERF? Explain any two types of HERF forming with [7M]
neat sketch.

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