Cast iron containing 6.6% carbon is

Engineering Materials Mcqs
BILAL KHATTAK0

A.Black in colour containing only pearlite
B.Black in colour containing only ferrite
C.Gray in colour containing pearite and ferrite only
D.Whitish containing cementite only
E.None of the above

Related Mcqs:

  1. The solid solution carbon in alpha iron obtained on cooling of 0.2% carbon steel which have been heated above the third critical point is called
  2. When piece of 0.2% carbon steel is heated above third critical point the steel is a solid solution of carbon in gamma iron and called
  3. In a 0.2% carbon steel which has been heated above the third critical temperature on cooling at the first critical point the austenite remaining in solution is transformed to new structure called
  4. Bainiti is a fine maxture of
  5. Which of the following is not true in case of white cast iron
  6. In grey cast iron, carbon is present in the form of
  7. The consitituent which has a powerful softening effect on cast iron and its presence in cast iron reduces the ability of the iron to retain carbon in chemical combination, is
  8. Hypoeutectoid steel has the structure of
  9. Pure iron has the structure of
  10. If the steel at room temperature is magnetic, the presence of which constituent can be ruled out?

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