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Engineering Materials

Engineering Materials
Iron ore is usually found in the form of

Carbonates
All of these
Sulphides
Oxides

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Engineering Materials
Compressive strength of grey cast iron in tonnes/cm is of the order of

1015
710
57
35

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Engineering Materials
White cast iron contains carbon in the form of

Free carbon
White carbon
Cementite
Graphite

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Engineering Materials
Shock resisting steels should have

Low hardness
Low wear resistance
Low tensile strength
Toughness

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Alpha iron, beta iron and gamma iron
Body centered cubic iron and face centered cubic iron
Alpha iron, gamma from and delta iron
Alpha iron and beta iron

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Engineering Materials
An example of amorphous material is

Silver
Lead
Zinc
Glass

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