CBSE Class 12 fabrication technology theory Question Paper II 2011 (Set 1)

Solve 2011 CBSE : fabrication technology theory question paper Set 1

1. Compare a shaper with a planer from the point of view of metal cutting. 2

(b) What is broaching operation? What types of work are done on a broaching machine? 3

(c) Can we do the milling operation on a lathe machine? Explain. 3

(d) Give specifications of a slotter. Mention all operations that can be done on it. 2

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2. (a) How are pipes classified? Name any six types of pipe materials. 3

(b) Draw a steel pipe connection, using elbow-joints and tee-joints. 3

(c) List advantages of steel pipes over plastic pipes. 2

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3. Define the following terms: 3

(i) Flaws

(ii) Waviness

(iii) Smoothness

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4. (a) What are the advantages and disadvantages of. galvanizing? 2

(b) What is anodizing? Give the uses and limitation,s of anodizing. 3

(c) Compare advantages and disadvantages of metallic and non-metallic coatings from the points of view of composition, process and uses. 3

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5. (a) What is corrosion? How can you protect mild steel from corrosion? 3

(b) A "fooden almirah is to be varnished afresh:

(i) Give step by step procedure to prepare the surface and varnish it afresh. Explain the method of preparing the varnish. 6

(ii) Give the list of consumables and equipment needed for this operation. 2

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CBSE Class 12 fabrication technology theory Question Paper II 2011 (Set 1)