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Engineering Materials

Engineering Materials
In low carbon steels, ________ raises the yield point and improves the resistance to atmospheric corrosion.

Sulphur
Phosphorus
Manganese
Silicon

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Engineering Materials
Corrosion resistance of steel is increased by adding

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

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Engineering Materials
An eutectoid steel consists of

Wholly austenite
Pearlite and cementite
Pearlite and ferrite
Wholly pearlite

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Engineering Materials
The property of a material essential for spring materials is

Plasticity
Ductility
Resilience
Stiffness

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Engineering Materials
Which of the following material has maximum ductility?

Nickel
Aluminium
Copper
Mild steel

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Engineering Materials
Ferromagnetic alpha iron exists in temperature range of

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

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