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Engineering Materials

Engineering Materials
Muntz metal contains copper and zinc in the ratio of

2.1180555555556
40 : 60
2.5277777777778
0.88888888888889

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Engineering Materials
Crystal structure of a material is, generally, examined by

Metallurgical microscope
Naked eye
Optical microscope
X-ray techniques

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Engineering Materials
In high speed steels, manganese is used to tougher the metal and to increase its

Melting point
Hardness
Yield point
Critical temperature

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Engineering Materials
Pearlite consists of

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

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Engineering Materials
Ball bearings are, usually, made from

Chrome steel
Low carbon steel
High carbon steel
Medium carbon steel

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Engineering Materials
When a steel containing __________ 0.8% carbon is cooled slowly below the lower critical point, it consists of ferrite and pearlite.

Equal to
None of these
Less than
More than

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