276. Match the following
     A. Polyester resin
     B. Methyl methacrylate
     C. Polyurethane
     D. Polyvinyl chloride
     Product
     1. Moulded luggage
     2. Refrigerator insulation
     3. FRP
     4. Contact lenses
     5. Floor tiles

1. 1. A–1, B–2, B–3, C–4

   
   
   

   2. A–1, B–2, B–3, C–5

   
   
   

   3. A–1, B–2, B–5, C–4

   
   
   

   4. A–1, B–5, B–3, C–4

   
   
   

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1. View Hint View Answer Discuss in Forum

   A–1, B–2, B–3, C–4

   Correct Option: A

   A–1, B–2, B–3, C–4

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277. Match the following
     Manufacturing process
     A. Cold rolling
     B. Milling
     C. Brazing
     D. Powder metallurgy
     Property
     1. Machinability
     2. Weldability
     3. Ductility
     4. Tensile strength
     5. Compactability

1. 1. A–3, B–1, C–4, D–5.

   
   
   

   2. A–3, B–1, C–4, D–2.

   
   
   

   3. A–3, B–1, C–2, D–5.

   
   
   

   4. A–2, B–1, C–4, D–5.

   
   
   

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1. View Hint View Answer Discuss in Forum

   A–3, B–1, C–4, D–5.

   Correct Option: A

   A–3, B–1, C–4, D–5.

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278. Electrochemical grinding removes material by... A... And... B... processes.
     A. electrochemical/chemical
     B. mechanical/chemical

1. 1. A. (chemical ) and B. (Mechanical)

   
   
   

   2. A. (Electrochemical) and B. (chemical )

   
   
   

   3. A. (Electrochemical) and B. (Mechanical)

   
   
   

   4. A. (chemical ) and B. (chemical )

   
   
   

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1. View Hint View Answer Discuss in Forum

   A. (Electrochemical) and B. (Mechanical)

   Correct Option: C

   A. (Electrochemical) and B. (Mechanical)

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279. Match the following
     Machining Process
     A. Machining
     B. Casting
     C. Welding
     D. Drawing
     Associated Problem
     1. Wrinkling
     2. Heat affected zone
     3. Hot tear
     4. Built up edge

1. 1. A–4, B–3, C–2, D–1

   
   
   

   2. A–4, B–3, C–1, D–2

   
   
   

   3. A–1, B–3, C–2, D–4

   
   
   

   4. A–4, B–1, C–2, D–3

   
   
   

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1. View Hint View Answer Discuss in Forum

   A–4, B–3, C–2, D–1

   Correct Option: A

   A–4, B–3, C–2, D–1

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280. In DNC each machine tool is controlled by a dedicated computer.

1. 1. True

   
   
   

   2. False
      
      

   
   
   

   3. False and True

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   True
   IN DNC, Several machine tools connected to a supervisory computer, which controles all their functions.

   Correct Option: A

   True
   IN DNC, Several machine tools connected to a supervisory computer, which controles all their functions.

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