Engineering Materials
A coarse grained steel

Is more ductile and has a less tendency to distort during heat treatment
Is more ductile and has a greater tendency to distort during heat treatment
Is less tough and has a greater tendency to distort during heat treatment
Is less tough and has a less tendency to distort during heat treatment

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

Air is burning out silicon and manganese
Silicon and manganese has burnt and carbon has started oxidizing
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

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