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ENGINEERING MATERIALS

Engineering Materials
Permalloy is a

Nickel and iron alloy having high permeability
None ferrous alloy
Kind of stainless steel
Polymer

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Engineering Materials
Process of Austempering results in

Formation of bainite structure
Lamellar layers of carbide distributed throughout the structure
Carburised structure
Martenistic structure

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Engineering Materials
Which is false statement about tempering? Tempering is done to

Improve ductility
Improve toughness
Improve machinability
Release stresses

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

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

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

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

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