561. Match the following
     Product
     P. Moulded luggage
     Q. Packaging containers for liquid
     R. Long structural shapes
     S. Collapsible tubes
     Process
     1. Injection moulding
     2. Hot rolling
     3. Impact extrusion
     4. Transfer moulding
     5. Blow moulding
     6. Coining

1. 1. P-1, Q-4, R-6, S-3

   
   
   

   2. P-4, Q-5, R-2, S-3

   
   
   

   3. P-1, Q-5, R-3, S-2

   
   
   

   4. P-5, Q-1, R-2, S-2

   
   
   

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1. View Hint View Answer Discuss in Forum

   P – 4, Q – 5 R – 2, S – 3

   Correct Option: B

   P – 4, Q – 5 R – 2, S – 3

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562. Ductility of material with work hardening

1. 1. Increases

   
   
   

   2. Decreases

   
   
   

   3. Remains same

   
   
   

   4. Unpredictable

   
   
   

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1. View Hint View Answer Discuss in Forum

   Because with Deformation, material becomes stronger.

   Correct Option: B

   Because with Deformation, material becomes stronger.

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563. Match the following:
     

     List-I	List-II
     A. Rivets for aircraft	1. Forging body
     B. Carburetor body	2. Cold heading
     C. Crank shafts	3. Aluminum base alloy
     D. Nails	4. Pressure die casting
     	5. Investment casting

1. 1. A-3, B-4, C – 1, D – 2

   
   
   

   2. A-3, B-4, C – 2, D – 2

   
   
   

   3. A-4, B-3, C – 1, D – 2

   
   
   

   4. A-3, B-2, C – 4, D – 2

   
   
   

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1. View Hint View Answer Discuss in Forum

   A-3, B-4, C – 1, D – 2

   Correct Option: A

   A-3, B-4, C – 1, D – 2

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564. A test specimen is stressed slightly beyond the yield point and then unloaded. Its yield strength

1. 1. Decreases

   
   
   

   2. Increases

   
   
   

   3. remains same

   
   
   

   4. become equal to UTS

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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565. The true sliding strain for a low carbon Steel bar which is doubled in length by forging is

1. 1. 0.307

   
   
   

   2. 0.5

   
   
   

   3. 0.693

   
   
   

   4. 1.0

   
   
   

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1. View Hint View Answer Discuss in Forum

   Strain = ∊ =	2l − l	= 1
   	1

   
   strain = ln (1 + 1)
   = ln 2 = 0.693

   Correct Option: C

   Strain = ∊ =	2l − l	= 1
   	1

   
   strain = ln (1 + 1)
   = ln 2 = 0.693

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