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Engineering Materials

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

0.02
0.008
0.002
0.013

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

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

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.002
0.005
0.01
0.008

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Engineering Materials
The lower critical temperature

Increases as the carbon content in steel increases
Depends upon the rate of heating
Decreases as the carbon content in steel increases
Is same for all steels

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Engineering Materials
1841 high speed steel contains

Vanadium 18%, chromium 1% and tungsten 4%
Vanadium 1%, chromium 4% and tungsten 18%
Vanadium 4%, chromium 18% and tungsten 1%
None of these

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Engineering Materials
Cast iron is a

Malleable material
Brittle material
Ductile material
Tough material

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