Q.1
The process carried out in powder metallurgy is as followsi.) preparation of powder ii.) Blending of powder iii.) Compacting of powder iv.) Sintering
  • i, ii, iii, iv
  • i, iii, ii, iv
  • ii, i, iii, iv
  • iii, i, ii, iv
Q.2
A part produced after compaction in powder metallurgy is termed as ______________
  • Welded part
  • Cast part
  • Forged part
  • Green compact
Q.3
In atomization
  • passing molten metal through orifice and cooling it by dropping into water
  • molten metal is forced through a small orifice and broken up by a stream of compressed air
  • powder of metal is made by ball milling
  • the hydrogen reduces the oxide to metallic powder
Q.4
Which method is used to make powder of metals having low melting point?
  • Mechanical pulverisation
  • Electrolytic process
  • Chemical reduction
  • Atomization
Q.5
Which of the following method is used to make powder for brittle metals?
  • Mechanical Pulverisation
  • Electrolytic process
  • Chemical Reduction
  • Atomization
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