Some Previous Year Q

Manufacturing Process

MAIT

Some previous year (important) questions ONLY COVERING SYLLABUS UPTO UNIT 1 AND 2

2.5 marks

1. 2. 3. 4.

1. 2. 3. 4. 5.

2007  What are the different ways of classifying materials? What are the important Properties of moulding sand? Define each of them. What is a “Riser” in casting? What is a “chills”? What is the advantage of “forging” over “casting”? differentiate between “drop” and “press” forging? 2008  Name the various moulding materials used in foundry. List the essential constituents of moulding sand. Write the requirements of a good pattern. Why the selection of sprue reduces downwards? Differentiate between smithy and forging. 6 or 6.5 marks

1. 2. 3. 4. 5. 6.

1. 2. 3. 4. 5. 6.

2007  What are different types of pattern used in casting? Briefly explain each. What is “directional solidification” in casting? How do you ensure that the entire mould cavity is filled up with the molten metal? What are different casting defects? What are their causes and remedies? What is centrifugal casting? What products are made by this process? What are “upsetting” and “swaging” operations in smithy? Name some products that are forged. Why are they not cast? 2008  Sketch and describe the use and advantage of gated pattern. Do you agree with the statement, natural sand is often not suitable for moulding process? Justify your statement. Explain with neat sketch the working of cupola. What are the major drawbacks of casting processes and how they are over overcome? Do you think it is i s possible to forge all the materials? Justify your statement. Compare forged component with cast component.

Compiled RANA  Compiled  By-  By -RAMAKANT -- RAMAKANT