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Engineering Materials

Engineering Materials
Corundum contains more than 95%

MgO
Steel
Al2O3
SiO2

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Engineering Materials
The electric process of steel making is especially adapted to

Alloy and carbon tool steel
All of these
Magnet steel
High speed tool steel

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Engineering Materials
White metal contains

88% copper and 10% tin and rest zinc
Alloy of tin, lead and cadmium
Silver and chromium
63 to 67% nickel and 30% copper

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Engineering Materials
The tensile strength of wrought iron is maximum

Along the lines of slag distribution
None of these
Uniform in all directions
Perpendicular to lines of slag distribution

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Engineering Materials
Addition of manganese to aluminium results in

Improvement of casting characteristics
One of the best known age and precipitation hardening systems
Improvement of corrosion resistance
Improving machinability

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Engineering Materials
The cupola is used to manufacture

Wrought iron
Cast iron
Pig iron
Steel

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