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Engineering Materials

Engineering Materials
The aluminium alloy, mainly used, for anodized utensil manufacture, is

Y-alloy
Duralumin
Magnalium
Hindalium

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Engineering Materials
Eutectoid reaction occurs at

723°C
1493°C
1147°C
600°C

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Engineering Materials
Which of the following material has nearly zero coefficient of expansion?

Stainless steel
Invar
High speed steel
Heat resisting steel

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Engineering Materials
Delta-iron occurs between the temperature ranges of

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

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.01
0.005
0.002
0.008

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Space lattice
Atomic packing factor
Coordination number
None of these

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