EME102 Manufacturing Sciences B.Tech Question Paper : tmu.ac.in

University : Teerthanker Mahaveer University
College : Teerthanker Mahaveer College of Engineering
Degree : B.Tech
Subject : EME102 Manufacturing Sciences
Semester : I
Document Type : Question Paper
Website : tmu.ac.in

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Manufacturing Sciences :

B.Tech I SEMESTER EXAMINATION 2010-11
Course Code : EME102
Paper ID: 0211101

Related : Teerthanker Mahaveer Medical College & Research Centre EME101 Engineering Mechanics B.Tech Question Paper : www.pdfquestion.in/5767.html

Time : 3 Hours
Max. Marks: 75
Note : Attempt six questions in all. Q. No. 1 is compulsory.
1. Answer any five of the following (limit your answer in 50 words). (3×5=15)
a) What is creep and what is its significance?
b) What is Extrusion? Draw neat sketch of two types of extrusion processes.
c) What is DIE casting? Explain with neat sketch.

d) Make a neat and labled diagram of cupola furnace.
e) Give any five differences in the shaping and planning machine.
f) Classify welding processes.

g) Differentiate between first and third angle method of projection.
h) Describe the offset method of isometric projection.

2. Define the following properties of materials- (2×6=12)
a) Stiffness
b) Malleability
c) Ductility
d) Toughness
e) Hardness
f) Elasticity

3. a) Compare hot working and cold working. (6)
b) What is rolling? Explain with neat diagram. (6)

4. a) Describe mould making in detail with neat diagram. (6)
b) Explain the different allowances provided on pattern. (6)
5. Explain the function of different parts of lathe machine. (12)

6. a) What are the differences between soldering and brazing? (6)
b) Explain resistance welding with neat diagram. (6)
7. Describe with neat sketch- (3×4=12)
a) Line Parallel to H.P.
b) Line Parallel to V.P.
c) Line inclined to H.P.
d) Line Inclined to V.P.

8. a) What is Isometric Scale? (4)
b) Describe the box method of Iso-metric projection. (8)
i) the principle planes and
ii) the stress components on these planes.

B.Tech I (First) Semester Examination 2014-15 :
Course Code : EME102
Paper ID : 0962409
Time : 3 Hours
Max. Marks : 70
Max Marks : 75
Note : Attempt six questions in all. Q. No. 1 is compulsory.
1. Answer any five of the following (limit your answer to 50 words). (4×5=20)
a) Explain Brittleness and Hardness.
b) What are advantages and disadvantages of hot working process?

c) How do you repair the castings? Explain.
d) Describe any two work holding devices used on the lathe.
e) Differentiate between shaper and planer.

f) What are the main requirements of a good flux used in a gas welding?
g) How unconventional manufacturing processes differ from Conventional processes?
h) What do you mean by power coating? In which case is it used?

2. Explain the following cold working processes: (2.5×4=10)
a) Cold rolling
b) Stretch forming
c) Cold hobbing
d) Cold bending

3. Explain various mechanical properties of engineering materials. (10)
4. Define casting. What four basic steps are generally involved in making a casting/ (10)
5. Explain following parts of a lathe by neat sketch (2.5×4=10)
a) Lathe bed
b) Carriage
c) Head stock
d) Tail stock

6. Define electric arc welding. Discuss with the help of neat sketch, the principle of arc welding. What is straight polarity and reverse polarity? (10)
7. Why is flushing important in electric discharge Machining (EDM)? Give a schematic diagram of EDM process and explain its limitations. (10)

8. Write short notes of the following: (2.5×4=10)
a) Power Coating
b) Polishing
c) Buffing
d) Burnishing

B.Tech I (First) Semester Examination 2015-16 :
1. Answer any five of the following (limit your answer to 50 words). (4×5=20)
a) Explain malleability and stiffness.
b) What are advantages and disadvantages of cold working process?

c) Why are the castings heat treated?
d) Name the operations, which can be performed on a lathe.
e) State the working principle of a drilling machine.

f) Explain the principle of arc welding.
g) What are the basic limitations of unconventional manufacturing processes?
h) Why finishing is required? Explain.

2. Write short notes on the following: (2.5×4=10)
a) Elasticity
b) Creep
c) Plasticity
d) Fatigue

3. Differentiate between hot working and cold working. (10)
4. Describe the permanent mold casting process and discuss how it differs from the other casting processes? (10)
5. Name the different types of the lathes available in shop. Describe the working of a centre lathe. (10)