B.TECH - Semester 4 manufacturing process Question Paper 2019 (jun)
Practice authentic previous year university questions for better exam preparation.
Sample Questions
- (b) How internal cavities are made in castings?
- What is core print? Give its purpose.
- Briefly describe the $\mathrm{CO}_{2}$ process.
- Write notes on cleaning and testing of castings.
- Give an account of different types of chills used in castings.
- With the help of a neat sketch, describe the flame for gas welding.
- What are the fields of application of arc welding?
- Write a note on welding inspection.
- Differentiate between cold rolling and hot rolling.
- What are the common defects in castings? How are they prevented?
- Explain the principle of rotary piercing. PART - B
- (a) Explain the shell moulding process.
- (b) What are the different types of material used for pattern making? Describe them and write the advantages and disadvantages. OR
- (a) Explain the die-casting process.
- (b) What are the different types of patterns? Explain.
- (a) What are the shielding gases used? Explain the functions of electrode coating.
- (b) Sketch and explain an arc welding circuit. OR
- Explain the following forms of welding. (a) Spot welding.
- Explain the following forms of welding. (b) Seam welding.
- Explain the following forms of welding. (c) Projection welding
- Explain the following forms of welding. (d) Butt welding
- (a) Explain the different types of rolling mills with the help of neat sketches.
- (b) Explain the process of rolling channels and I-sections.
- What is forging? What are the different types of objects manufactured by forging? Explain the different forging processes. G - 3332
- Brief the term split pattern.
- How shrinkage cavities are avoided in castings?
- What is the function of chaplet?
- How slag inclusions are eliminated during casting?
- How hot tears are formed in castings?
- Sketch a four high rolling mill.
- How extrusion process classified?
- How oxidation prevented in arc welding?
- Name any four welding defects.
- Name the three flame types. ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{2} \boldsymbol{=} \mathbf{2 0}$ Marks) P.T.O. PART - B (Each question carries 20 marks)
- (a) Write a note on pattern allowance.
- (b) Explain the various testing procedures of moulding sand.
- (a) Describe in detail plaster moulding process.
- (a) Explain compacting and sintering in powder metallurgy.
- (b) Describe semi centrifugal casting with sketch. OR
- (a) Explain injection moulding process.
- (b) Describe the solidification of casting with three important zones.
- (a) Explain the representation of the criteria in stress space.
- (b) Explain various forging allowances with example.
- (a) With a neat sketch explain wire drawing with sketch.
- (b) Explain the rolling of tubes.
- (a) With a neat sketch explain submerged arc welding.
- (b) Explain any one non destructive testing method in welding. OR
- (a) Describe forge welding.
- (b) Write a note on heat affected zone. ( $\mathbf{4} \boldsymbol{\times} \mathbf{2 0} \boldsymbol{=} \mathbf{8 0}$ Marks)