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Engineering Materials

Engineering Materials
Hardness of lower bainite (tempered martensite) is about

RC 65
RC 80
RC 48
RC 57

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Engineering Materials
Hematite iron ore contains iron about

0.55
0.45
0.7
0.3

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Engineering Materials
In nodular iron, graphite is in the form of

Spheroids
Flakes
Free carbon
Cementite

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Engineering Materials
Permalloy is a

Nickel and iron alloy having high permeability
None ferrous alloy
Kind of stainless steel
Polymer

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Engineering Materials
Dislocations in materials refer to the following type of defect

Plane defect
Volumetric defect
Point defect
Line defect

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Engineering Materials
Aluminium bronze contains aluminium and copper in the ratio of

40 : 60
2.1180555555556
0.47916666666667
2.5277777777778

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