Plain Carbon Steels MCQ

Test your knowledge with important Plain Carbon Steels MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Plain Carbon Steels MCQs on Bissoy. Bissoy App

• Which of the following given steels is popular with the name of machinery steel?
  ক

  Low carbon steel

  খ

  Medium carbon steel

  গ

  High carbon steel

  ঘ

  None of these
• Which of the following steel given in options respond fastest and easily to heat treatment?
  ক

  7C4

  খ

  10C4

  গ

  30C8

  ঘ

  40C8
• Which of the steel in given options is best suited for auto mobile bodies and hoods?
  ক

  7C4

  খ

  10C4

  গ

  30C8

  ঘ

  40C8
• In the designation “xCb” which of the following are true?
  ক

  x indicates 100 times the average % of carbon

  খ

  b indicates 100 times the average percentage of manganese

  গ

  x indicates 10 times the average percentage of carbon while b indicates 100 times the average percentage of manganese

  ঘ

  b indicates 100 times the average % of carbon
• Which of the following are true for high carbon steels?
  ক

  Carbon content=0.4%

  খ

  Respond readily to heat treatments

  গ

  Have much ductility as compared to low and medium carbon steels

  ঘ

  Easy to weld
• Which of the following are true about low carbon steels?
  ক

  Carbon content < 0.3%

  খ

  Also called as mild steel

  গ

  Are soft and ductile

  ঘ

  All of the mentioned
• The term high alloy steels is used for alloy steels containing more than ___ of alloying elements.
  ক

  10%

  খ

  20%

  গ

  50%

  ঘ

  70%
• White cast iron is formed when
  ক

  Graphite flakes are formed

  খ

  Most of the carbon content in the alloy forms iron carbide

  গ

  No iron carbide is formed

  ঘ

  None of the mentioned
• Grey Cast iron is formed when
  ক

  Carbon content in the alloy exceeds the amount that can be dissolved

  খ

  Carbon content in the alloy is less than the amount that can be dissolved

  গ

  Carbon content in the alloy is equal to the amount that can be dissolved in the alloy

  ঘ

  None of the mentioned
• Ductile cast iron is
  ক

  Also called nodular cast iron

  খ

  Also called spheroidal graphite cast iron

  গ

  Carbon is present in form of spherical nodules

  ঘ

  All of the mentioned