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Engineering Materials

Engineering Materials
The presence of sulphur in pig iron makes

It hard
It brittle
It easily machinable
The casting unsound

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Engineering Materials
Cupola produces following material

Malleable iron
Pig iron
Cast iron
Wrought iron

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Engineering Materials
Cast iron is a

Tough material
Malleable material
Brittle material
Ductile material

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Engineering Materials
When low carbon steel is heated up to lower critical temperature

The average grain size is a minimum
The grain size increases very rapidly
The grain size first increases and then decreases very rapidly
There is no change in grain size

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Engineering Materials
When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of

Ferrite and pearlite
Pearlite and cementite
Mainly pearlite
Mainly ferrite

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Engineering Materials
An example of amorphous material is

Lead
Glass
Zinc
Silver

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MORE MCQ ON Engineering Materials

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