Multiple Choice Questions On Manufacturing Process and Production Engineering


16. A cylindrical section having no joints is known as.......


   A.Seamless

   B.Ideal

   C.Economical

   D.Perfect

   E.Jointless


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A.Seamless

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17. Hard working operation is carried at.......


   A.Recrystallisation temperature

   B.Near plastic stage tepmerature

   C.Below recrystallisation temperature

   D.Above recrystallisation temperature

   E.Above room temperature


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D.Above recrystallisation temperature

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18. The increase in hardness due to cold working is called.........


   A.Cold hardening

   B.Hot hardening

   C.Work hardening

   D.Age-hardening

   E.Induction hardening


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C.Work hardening

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19. An important product manufactured by rolling is......


   A.I-section

   B.Tubes

   C.Metal rolls

   D.Rollers

   E.Discs


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A.I-section

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20. The important mechanical property of a material for extrusion purposes is.......


   A.Continuity

   B.Ductility

   C.Elasticity

   D.Plasticity

   E.Brittleness


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D.Plasticity

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