Transformation of Steel and Cast Iron MCQ

Test your knowledge with important Transformation of Steel and Cast Iron MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Transformation of Steel and Cast Iron MCQs on Bissoy. Bissoy App

• Transformation of hypoeutectic cast iron is applicable for the composition of cast iron of ________ carbon.
  ক

  2.0-4.3%

  খ

  4.3%

  গ

  4.3-5.0%

  ঘ

  Over 5%
• Heating of 4.8% cast iron at _______ results in the formation of liquid metal.
  ক

  450oC

  খ

  650oC

  গ

  950oC

  ঘ

  1450oC
• Cooling of austenite of eutectoid composition at 723oC results in formation of ________
  ক

  Ledeburite

  খ

  Sphereoidite

  গ

  Pearlite

  ঘ

  Bainite
• A mixture of austenite and cementite is called ___________
  ক

  Ferrite

  খ

  Ledeburite

  গ

  Pearlite

  ঘ

  Bainite
• Slow cooling of hypereutectoid steel results in formation of __________
  ক

  Proeutectoid cementite

  খ

  Posteutectoid cementite

  গ

  Proeutectoid ferrite

  ঘ

  Proeutectoid austenite
• Cooling of hypoeutectoid steel post heating forms __________ ferrite.
  ক

  Proeutectoid

  খ

  Posteutectoid

  গ

  Hypereutectoid 2.08%

  ঘ

  Mild eutectoid
• Transformation in eutectoid steels is named as _________
  ক

  Austenitizing

  খ

  Carburizing

  গ

  Decarburizing

  ঘ

  Nitriding
• Eutectoid steel is heated at __________
  ক

  150oC

  খ

  450oC

  গ

  750oC

  ঘ

  950oC
• How much carbon does hypoeutectoid steel contain?
  ক

  <0.8%

  খ

  0.8%

  গ

  >0.8%

  ঘ

  8%
• Steels containing 0.8% C are called ________
  ক

  Eutectoid

  খ

  Hypoeutectoid

  গ

  Hypereutectoid

  ঘ

  Mild eutectoid
• Composition up to 0.008% carbon is considered as _________
  ক

  Pure iron

  খ

  Steel

  গ

  Cast iron

  ঘ

  Annealed steel