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Engineering Materials

Engineering Materials
White cast iron contains carbon in the form of

White carbon
Graphite
Cementite
Free carbon

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Engineering Materials
In mottled cast iron, carbon is available in

Combined form
Partly in free and partly in combined state
Free form
Nodular form

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Engineering Materials
Cementite consist of

13% carbon and 87% ferrite
13% ferrite and 87% cementite
6.67% carbon and 93.33% iron
13% cementite and 87% ferrite

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Engineering Materials
Chilled cast iron has

A very high percentage of graphite
Graphite as its basic constituent of composition
No graphite
A low percentage of graphite

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Engineering Materials
Nickel when added to copper improves

Strength and ductility
Hardness
Machinability
Hardness and strength

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Engineering Materials
Steel made from phosphate iron is

Hard
Tough
Brittle
Ductile

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MORE MCQ ON Engineering Materials

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