116. Match the following metal forming processes with their associated stresses in the workpiece
     Metal forming process
     A. Coining
     B. Wire Drawing
     C. Blanking
     D. Deep Drawing
     Type of stress
     1. Tensile
     2. Shear
     3. Tensile and compressive
     4. Compressive Codes:

1. 1. A B C D
      4 1 2 3

   
   
   

   2. A B C D
      4 1 3 2

   
   
   

   3. A B C D
      1 2 4 3

   
   
   

   4. A B C D
      1 3 2 4

   
   
   

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1. View Hint View Answer Discuss in Forum

   A – 4 B – 1 C – 2 D – 3

   Correct Option: A

   A – 4 B – 1 C – 2 D – 3

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117. The operation in which oil is permeated into the pores of a powder metallurgy product is known as

1. 1. mixing

   
   
   

   2. sintering

   
   
   

   3. impregnation

   
   
   

   4. infiltration

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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118. Disposable patterns are made of

1. 1. wood

   
   
   

   2. rubber

   
   
   

   3. metal

   
   
   

   4. polystyrene

   
   
   

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1. View Hint View Answer Discuss in Forum

   Thermosetting plastic

   Correct Option: B

   Thermosetting plastic

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119. Which of the following materials requires the largest shrinkage allowance, while making a pattern for casting

1. 1. Aluminium

   
   
   

   2. Brass

   
   
   

   3. Cast iron

   
   
   

   4. Plain carbon steel

   
   
   

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1. View Hint View Answer Discuss in Forum

   Brass

   Correct Option: B

   Brass

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120. Match the following
     A. Sand casting
     B. Plaster mould casting
     C. Shell mould casting
     D. Investment casting
     1. Symmetrical and circular shapes only
     2. Parts have hardened skins and soft interior
     3. Minimum post casting process
     4. Parts have soft skin and hard interior
     5. Parts have a tendency to warp
     6. Suitable only for nonferrous metals

1. 1. A – 4, B – 6, C – 2, D – 2

   
   
   

   2. A – 5, B – 6, C – 2, D – 3

   
   
   

   3. A – 5, B – 3, C – 2, D – 6

   
   
   

   4. A – 4, B – 6, C – 2, D – 1

   
   
   

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1. View Hint View Answer Discuss in Forum

   A – 5, B – 6, C – 2, D – 3

   Correct Option: B

   A – 5, B – 6, C – 2, D – 3

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