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Engineering Materials

Engineering Materials
White cast iron contains carbon in the form of

Cementite
Free carbon
Graphite
White carbon

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Engineering Materials
Cold rolled steel sheets contain carbon of the following order

0.002
0.006
0.004
0.001

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Engineering Materials
The ability of a material to resist softening at high temperature is known as

Hot hardness
Hot tempering
Fatigue
Creep

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Engineering Materials
Addition of manganese to aluminium results in

Improving machinability
Improvement of corrosion resistance
One of the best known age and precipitation hardening systems
Improvement of casting characteristics

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.008
0.003
0.0063
0.0002

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Engineering Materials
The lower critical temperature

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

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MORE MCQ ON Engineering Materials

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