Engineering Materials
Ductility of a material can be defined as

Ability to undergo large permanent deformations in compression
All of these
Ability to undergo large permanent deformations in tension
Ability to recover its original form

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Engineering Materials
The brown smoke during the operation of a Bessemer converter indicates that the

The brown smoke does not occur during the operation of a Bessemer converter
The converter must be titled to remove the contents of the converter
Silicon and manganese has burnt and carbon has started oxidizing
Air is burning out silicon and manganese

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Engineering Materials
Carbon steel is

Refined from cast iron
An alloy of iron and carbon with varying quantities of phosphorus and sulphur
Made by adding carbon in steel
Extensively used for making cutting tools

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