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Engineering Materials

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

Duralumin
Hindalium
Y-alloy
Magnalium

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Engineering Materials
Corrosion resistance of steel is increased by adding

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

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Engineering Materials
Which is false statement about annealing? Annealing is done to

Harden steel slightly
Improve machining characteristic
Soften material
Relieve stresses

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Engineering Materials
White cast iron contains carbon in the form of

Graphite
White carbon
Free carbon
Cementite

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Engineering Materials
When the steel is normalized, its

Ultimate tensile strength increases
All of these
Yield point increases
Ductility decreases

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Engineering Materials
Eutectoid steel contains following percentage of carbon

0.008
0.003
0.0063
0.0002

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