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Engineering Materials

Engineering Materials
The metal suitable for bearings subjected to light loads, is

White metal
Phosphor bronze
Silicon bronze
Monel metal

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Engineering Materials
Brass contains

85 - 92% copper and rest tin with little lead and nickel
70 - 75% copper and rest tin
70% copper and 30% zinc
90% copper and 10% tin

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Engineering Materials
Grey cast iron has

Carbon in the form of free graphite
All of these
High tensile strength
Low compressive strength

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

RC 48
RC 57
RC 65
RC 80

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Engineering Materials
Drop forging dies contain carbon of the order of

0.25 to 0.5%
0.6 to 0.7%
0.1 to 0.2%
0.7 to 0.9%

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Engineering Materials
Cupola produces following material

Cast iron
Malleable iron
Pig iron
Wrought iron

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