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Engineering Materials

Engineering Materials
Crystal structure of a material is, generally, examined by

Naked eye
Metallurgical microscope
Optical microscope
X-ray techniques

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Engineering Materials
Hardness of upper bainite (acicular structure) is about

RC 80
RC 57
RC 65
RC 48

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

0.002
0.013
0.008
0.02

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Engineering Materials
Hardness of martensite is about

RC 57
RC 48
RC 65
RC 80

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Engineering Materials
Addition of lead and bismuth to aluminium results in

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

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Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Refine grain structure
Reduce segregation in casting
Improve mechanical properties
Induce stresses

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MORE MCQ ON Engineering Materials

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