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Engineering Materials

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

2.1180555555556
40 : 60
2.5277777777778
0.47916666666667

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Engineering Materials
Tensile strength of steel can be safely increased by

Adding carbon up to 6.3%
Adding small quantities of copper
Adding carbon up to 2.8%
Adding carbon up to 0.83%

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Engineering Materials
Monel metal contains

Malleable iron and zinc
63 to 67% nickel and 30% copper
Alloy of tin, lead and cadmium
88% copper and 10% tin and rest zinc

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

RC 65
RC 80
RC 57
RC 48

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Engineering Materials
Which of the following material has maximum ductility?

Aluminium
Nickel
Copper
Mild steel

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Engineering Materials
Malleability of a material can be defined as

Ability to undergo large permanent deformations in tension
Ability to undergo large permanent deformations in compression
All of these
Ability to recover its original form

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