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Engineering Materials

Engineering Materials
The percentage of carbon in grey iron castings usually varies between

2.5 to 4.5%
0.012
5 to 7%
0.5 to 1%

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

0.47916666666667
2.5277777777778
2.1180555555556
40 : 60

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Engineering Materials
The machinability of steel is improved by adding

Chromium
Sulphur, lead and phosphorus
Nickel and chromium
Nickel

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Engineering Materials
Connecting rod is, usually, made from

Medium carbon steel
High speed steel
High carbon steel
Low carbon steel

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Engineering Materials
A small percentage of boron is added to steel in order to

Increase endurance strength
Increase hardenability
Increase wear resistance
Reduce machinability

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Engineering Materials
Heavy duty leaf and coil springs contain carbon of the following order

0.01
0.005
0.002
0.008

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