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Engineering Materials

Engineering Materials
An engineer's hammer is made of

Cast iron
Mild steel
High carbon steel
Forged steel

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.0063
0.003
0.008
0.0002

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Engineering Materials
Pearlite consists of

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

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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
Hardness of lower bainite (tempered martensite) is about

RC 48
RC 65
RC 80
RC 57

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Engineering Materials
White cast iron has

Carbon in the form of carbide
High compressive strength
All of these
Low tensile strength

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