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Engineering Materials

Engineering Materials
The transistor is made of

Germanium
Silver
Copper
Gold

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

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

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Engineering Materials
Addition of silicon to aluminium results in

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

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Engineering Materials
Which is the false statement about wrought iron? It has

Ability of hold protective coating
High ductility
Uniform strength in all directions
High resistance to rusting and corrosion

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Engineering Materials
The property of a material due to which it breaks with little permanent distortion, is called

Malleability
Ductility
Brittleness
Plasticity

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Engineering Materials
Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is

Hastelloy
Duralumin
Invar
Silver metal

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MORE MCQ ON Engineering Materials

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