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Engineering Materials

Engineering Materials
Steel containing ferrite and pearlite is

Hard
Hard and tough
Tough
Soft

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Engineering Materials
Which of the following steel making process is being adopted at Rourkela (in India) Steel Plant?

LD process
Bessemer process
Open hearth process
Electric process

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

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

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Engineering Materials
Cementite consist of

13% carbon and 87% ferrite
6.67% carbon and 93.33% iron
13% cementite and 87% ferrite
13% ferrite and 87% cementite

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Engineering Materials
Age-hardening is related with

Duralumin
Gun metal
German silver
Stainless steel

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Engineering Materials
Gamma iron exits at following temperature

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

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