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Engineering Materials

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

Hindalium
Magnalium
Duralumin
Y-alloy

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Engineering Materials
Induction hardening is the process of

Heating and cooling rapidly
Hardening surface of work-piece to obtain hard and wear resistant surface
Increasing hardness throughout
Inducing hardness by continuous process

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Engineering Materials
The material in which the atoms are arranged chaotically, is called

None of these
Crystalline material
Amorphous material
Mesomorphous material

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Engineering Materials
When low carbon steel is heated up to upper critical temperature

The grain size first increases and then decreases very rapidly
The grain size increases very rapidly
The average grain size is a minimum
There is no change in grain size

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Engineering Materials
Pipes for bicycle frames are made of

Hot rolled steel
Cold rolled steel
Cast steel
Forged steel

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Engineering Materials
The main alloying elements high speed steel in order of increasing proportion are

Tungsten, chromium, titanium
Vanadium, chromium, tungsten
Chromium, titanium, vanadium
Tungsten, titanium, vanadium

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