Engineering Materials
Specify the sequence correctly

Grain growth, recrystallization, stress relief
Stress relief, recrystallization, grain growth
Stress relief, grain growth, recrystallization
Grain growth, stress relief, recrystallization

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Engineering Materials
Free carbon in iron makes the metal

Hard and gives a coarse grained crystalline structure
Soft and gives a fine grained crystalline structure
Soft and gives a coarse grained crystalline structure
Hard and gives a fine grained crystalline structure

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Engineering Materials
Cobalt in steel

Improves wear resistance, cutting ability and toughness
Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties
Gives ductility, toughness, tensile strength and anti corrosion property
Improves cutting ability and reduce hardenability

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