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Engineering Materials

Engineering Materials
Cast iron is manufactured in

Bessemer converter
Open hearth furnace
Cupola
Blast furnace

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Engineering Materials
Taps dies and drills contain carbon

Below 1%
Above 2.2%
Below 0.5%
Above 1%

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Engineering Materials
When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron.

Both A and B
Cementite
Free graphite
None of these

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Engineering Materials
An eutectoid steel consists of

Pearlite and cementite
Wholly pearlite
Wholly austenite
Pearlite and ferrite

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Engineering Materials
Delta iron occurs at temperature of

Between 910°C and 1400°C
Above melting point
Between 1400°C and 1539°C
Room temperature

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Engineering Materials
Delta-iron occurs between the temperature ranges of

400°C to 600°C
600°C to 900°C
900°C to 1400°C
1400°C to 1530°C

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