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ENGINEERING MATERIALS

Engineering Materials
The hardness of steel increases if it contains

Austenite
Martensite
Pearlite
Cementite

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

900°C to 1400°C
1400°C to 1530°C
400°C to 600°C
600°C to 900°C

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Engineering Materials
Delta-iron occurs between the temperature ranges of

400°C to 600°C
1400°C to 1530°C
900°C to 1400°C
600°C to 900°C

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Engineering Materials
The blade of a power saw is made of

Malleable cast iron
High speed steel
Stainless steel
Boron steel

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Engineering Materials
German silver is an alloy of

Silver and some impurities
Nickel and copper
Nickel, Copper and zinc
Refined silver

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