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Engineering Materials

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

Hindalium
Duralumin
Y-alloy
Magnalium

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Engineering Materials
Gamma iron exits at following temperature

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

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Engineering Materials
Iron-carbon alloys containing carbon ________ 4.3% are known as hyper-eutectic cast irons.

More than
None of these
Equal to
Less than

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Engineering Materials
Corrosion resistance of steel is increased by adding

Aluminium and zinc
Nickel and molybdenum
Chromium and nickel
Tungsten and sulphur

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Engineering Materials
Hardness of upper bainite (acicular structure) is about

RC 80
RC 65
RC 57
RC 48

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Engineering Materials
The charge is fed into the blast furnace through the

Bosh
Throat
Tyres
Stack

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