Series OSS                                                                                                                         Code No.110

                                                                    FABRICATION TECHNOLOGY – II
                                                                                     (Theory)
Time allowed : 3 hours                                                                                           Maximum Marks : 40

Note : Attempt all questions. Draw neat pencil sketches,  wherever necessary.

 

 

1. (a) Compare a planer with a slotter from the point of view of metal cutting.    2

    (b) What  types of operations  can  be  performed  on a milling machine ?    3

    (c) What   are   the  advantages  of using  cutting  fluids  during machining ?    3

    (d) How is the size of a lathe specified ?    2

 

2. (a) What is a valve ? Name four types of valves and give their uses.    3

    (b) Name any six types of materials, used for pipes, giving their uses.    3

    (c) Draw steel pipe connections, using elbow joints.    2

 

3. How do you express roughness of a surface ?  Explain  any  one instrument to measure it.    3

 

4. (a) What is the difference between galvanizing and anodizing ?    3

    (b) What   is   the  difference  between  metallic  and non-metallic coatings ?    3

    (c) Explain the process of electroplating.    2

 

5. (a) How is a paint prepared ?    3

    (b) A wooden door 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 a list of consumables and equipment needed for this operation.    2