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Engineering Materials

Engineering Materials
Chromium when added to steel _________ the tensile strength.

Increases
Does not effect
Decreases
None of these

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Engineering Materials
Ball bearings are, usually, made from

Low carbon steel
High carbon steel
Chrome steel
Medium carbon steel

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Engineering Materials
The defect which takes place due to imperfect packing of atoms during crystallization is known as

Line defect
Surface defect
None of these
Point defect

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

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

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Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Refine grain structure
Improve mechanical properties
Reduce segregation in casting
Induce stresses

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Engineering Materials
The cupola is used to manufacture

Pig iron
Wrought iron
Steel
Cast iron

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