• 1. 
    Powder metallurgy process consist of the following operations, in sequence:

  • powder production, blending, compaction, sintering
  • powder production, sintering, compaction, blending
  • powder production, compaction, blending, sintering
  • None of these
  • 2. 
    Which one is the third process occur in sintering sequence ?

  • point bonding
  • grain boundary
  • pores
  • necks
  • 3. 
    Which of the processes listed below is NOT included in powder metal compaction

  • Pressing
  • Casting
  • Extrusion
  • Iso-static pressing
  • 4. 
    Which of below is the limitations and disadvantage of powder metallurgy?

  • pure metal powders are very expensive to produce
  • wide range of metaal powder like steels,bronze etc
  • poor plastic properties except good strength and elongation
  • the geometries are very limit
  • 5. 
    Which one is not the particle shape in powder metallurgy ?

  • cylindrical
  • rectangular
  • spherical
  • cubic
  • 6. 
    This is the pre-alloyed powder used in powder metallurgy, except ?

  • stainless steel
  • cooper alloy
  • high speed steel
  • aluminum
  • 7. 
    What is Mesh Count

  • refers to the number of openings per linear inch of screen
  • refers to the number of inch of screen
  • refers to the numbers of particles
  • all of above
  • 8. 
    Based on answer below, which is not the type of particle shape in Powder Metallurgy?

  • spherical
  • diamond
  • spongey
  • flakey
  • 9. 
    The following are the advantages of powder metallurgy EXCEPT?

  • composition of product can be controlled
  • close dimensional tolerances can be mantained
  • there are no lost of material
  • the product has high porosity
  • 10. 
    The process shown is

  • Cold isostatic pressing
  • Hot isostatioc pressing
  • Rolling
  • Extrusion
  • 11. 
    Which one is not the powder metallurgy product ?

  • iron & steel
  • aluminium
  • tin
  • zinc
  • 12. 
    The process shown in the picture is...

  • Atomization
  • Blending
  • Pressing
  • Sintering
  • 13. 
    Powder metallurgy is a process whereby metallic shapes are manufactured from

  • metallic powders
  • plastic
  • machining
  • grinding
  • 14. 
    Which of the following is the advantages of powder metallurgy except?

  • composition of product can be controlled
  • close dimensional tolerances can be mantained
  • there are no lost of material
  • the product has high porosity
  • 15. 
    What is the disadvantage of powder metallurgy ?

  • no skill labor required
  • reduction in production time
  • close dimensional tolerence
  • die design limit the size of product
  • 16. 
    Which of below is the limitation / disadvantage of powder metallurgy?

  • pure metal powders are very expensive to produce
  • wide range of metaal powder like steels,bronze etc
  • poor plastic properties except good strength and elongation
  • the geometries are very limit
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