Engineering Materials
White cast iron

Is produced by annealing process. It is soft, tough and easily machined metal
Is also known as chilled cast iron and is obtained by cooling rapidly. It is almost unmachinable
Is produced by small additions of magnesium (or creium) in the ladle. Graphite is in nodular or spheroidal form and is well dispersed throughout the material
Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

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Engineering Materials
Specify the sequence correctly

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

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Engineering Materials
Pick up wrong statement about wrought iron

It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling
It contains carbon of the order of 0 to 0.25%
It melts at 1535°C
It is very soft and ductile

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