Formation of thick layer of scale on the surface of steel articles can be minimised by

Metallurgy Mcqs
BILAL KHATTAK0

A.heating in furnaces with reducing neutral or protective atmosphere
B.heating in boxes with used carburising agent or cast iron chips
C.heating in molten salt bath
D.Any of the above

Related Mcqs:

  1. During heat treatment the formation of thick layer of scale on the surface of steel articles is mainly due to
  2. Generally for the melting of cast iron, electric furnaces are not used because
  3. Grey cast iron is produced
  4. White cast iron is produced
  5. While machining cast iron generally cutting fluid is not required because
  6. Warping of articles during heat treatment may be due to
  7. In a steel plant the product of a blast furnace is
  8. The main atmospheric layer near the surface of earth is __________.
  9. Which of the following material can withstand maximum shocks without failure?
  10. Which of the following is closest to the purest form of iron

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