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Engineering Materials

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

Magnalium
Duralumin
Hindalium
Y-alloy

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Engineering Materials
Which of the following has highest specific strength of all structural materials?

Chromium alloys
Magnesium alloys
Titanium alloys
Magnetic steel alloys

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Engineering Materials
In the lower part of the blast furnace (zone of fusion), the temperature is

800°C to 1000°C
400° to 700°C
1200°C to 1300°C
1500°C to 1700°C

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Engineering Materials
Sulphur in steel

Reduces the grain size
Acts as deoxidiser
Lowers the toughness and transverse ductility
Decreases tensile strength and hardness

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

Sulphur
Phosphorus
Silicon
Manganese

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Engineering Materials
When the steel is normalized, its

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

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