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Engineering Materials

Engineering Materials
Dye penetrant method is generally used to locate

Surface defects
Core defects
Temporary defects
Superficial defects

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Engineering Materials
Super conduction by metals is observed in the temperature range of

Around 100°C
Above 100°K
Below 10°K
Around 0°C

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Engineering Materials
The ability of a material to absorb energy in the plastic range is called

Creep
Toughness
Fatigue strength
Resilience

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Engineering Materials
Pig iron is the name given to

Raw material for blast furnace
Iron in molten form in the ladles
Iron containing huge quantities of carbon
Product of blast furnace made by reduction of iron ore

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Engineering Materials
The percentage of carbon in low carbon steel is

0.5%
0.05%
0.15%
0.3%

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Engineering Materials
Hardness of martensite is about

RC 65
RC 80
RC 57
RC 48

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