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Engineering Materials

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

None of these
Point defect
Line defect
Surface defect

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Engineering Materials
Basic solution is one which has pH value

Greater than 7
Equal to 7
pH value has nothing to do with basic solution
Less than 7

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Engineering Materials
Ball bearings are, usually, made from

Chrome steel
Medium carbon steel
High carbon steel
Low carbon steel

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Engineering Materials
Weld decay is the phenomenon found with

Nonferrous materials
Cast iron
Stainless steel
Mild steel

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Engineering Materials
Delta iron occurs at temperature of

Room temperature
Between 910°C and 1400°C
Between 1400°C and 1539°C
Above melting point

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Engineering Materials
Pearlite consists of

13% ferrite and 87% cementite
6.67% carbon and 93.33% iron
13% carbon and 87% ferrite
13% cementite and 87% ferrite

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