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Engineering Materials

Engineering Materials
Cast iron is characterized by minimum of following percentage of carbon

0.008
0.013
0.02
0.002

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Engineering Materials
Hardness of lower bainite (tempered martensite) is about

RC 57
RC 65
RC 80
RC 48

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Engineering Materials
Eutectoid reaction occurs at

1147°C
723°C
600°C
1493°C

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Engineering Materials
Maximum percentage of carbon in austenite is

0.017
0.0026
0.00025
0.008

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Engineering Materials
The portion of the blast furnace below its widest cross-section is called

Stack
Throat
Hearth
Bosh

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Engineering Materials
The percentage of carbon in grey iron castings usually varies between

0.5 to 1%
0.012
2.5 to 4.5%
5 to 7%

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