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Engineering Materials

Engineering Materials
Steel made from phosphate iron is

Hard
Ductile
Brittle
Tough

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Engineering Materials
High carbon steel carries carbon percentage

0.8 to 1.5%
0.6 to 0.8%
0.3 to 0.6%
0.1 to 0.3%

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Engineering Materials
The compressive strength of cast iron is __________that of its tensile strength.

Less than
Equal to
None of these
More than

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

RC 65
RC 48
RC 57
RC 80

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Engineering Materials
Which of the following material has maximum ductility?

Aluminium
Copper
Mild steel
Nickel

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Engineering Materials
When the steel is normalized, its

Ductility decreases
All of these
Yield point increases
Ultimate tensile strength increases

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