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Engineering Materials

Engineering Materials
Dye penetrant method is generally used to locate

Surface defects
Core defects
Superficial defects
Temporary defects

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Engineering Materials
The addition of which of the following improves machining of copper?

Vanadium
Sulphur
Tin
Zinc

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Engineering Materials
An eutectoid steel consists of

Wholly austenite
Wholly pearlite
Pearlite and ferrite
Pearlite and cementite

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Engineering Materials
Brass contains

70 - 75% copper and rest tin
70% copper and 30% zinc
90% copper and 10% tin
85 - 92% copper and rest tin with little lead and nickel

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

770 to 910°C
Below 723°C
1400 to 1539°C
910 to 1440°C

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Engineering Materials
Cupola produces following material

Wrought iron
Cast iron
Malleable iron
Pig iron

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