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Q: If the carbon content is steel increased, its
  • A. strength decrease
  • B. malleability increases
  • C. hardness decreases
  • D. ductility decreases
Correct Answer: Option D - As the carbon content increase – • The ultimate strength of steel increase. • The ductility of the metal decreases. • The elongation before fracture decreases. • malleability decreases • hardness increases
D. As the carbon content increase – • The ultimate strength of steel increase. • The ductility of the metal decreases. • The elongation before fracture decreases. • malleability decreases • hardness increases

Explanations:

As the carbon content increase – • The ultimate strength of steel increase. • The ductility of the metal decreases. • The elongation before fracture decreases. • malleability decreases • hardness increases