Shock resistance of steel is increased by adding

Engineering Materials
Shock resistance of steel is increased by adding

Chromium

Nickel

Sulphur, lead and phosphorus

Nickel and chromium

Chromium

Nickel

Sulphur, lead and phosphorus

Nickel and chromium

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Engineering Materials
Tensile strength of steel can be safely increased by

Adding small quantities of copper

Adding carbon up to 2.8%

Adding carbon up to 0.83%

Adding carbon up to 6.3%

Adding small quantities of copper

Adding carbon up to 2.8%

Adding carbon up to 0.83%

Adding carbon up to 6.3%

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Engineering Materials
Smelting is the process of

All of these

Removing the impurities like clay, sand etc. from the iron ore by washing with water

Reducing the ore with carbon in the presence of a flux

Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

All of these

Removing the impurities like clay, sand etc. from the iron ore by washing with water

Reducing the ore with carbon in the presence of a flux

Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

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Engineering Materials
The machinability of steel is increased by

Phosphorous, lead and sulphur

Phosphorous and aluminium

Sulphur, graphite and aluminium

Silicon and sulphur

Phosphorous, lead and sulphur

Phosphorous and aluminium

Sulphur, graphite and aluminium

Silicon and sulphur

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

0.47916666666667

2.1180555555556

40 : 60

2.5277777777778

0.47916666666667

2.1180555555556

40 : 60

2.5277777777778

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Engineering Materials
Grey cast iron

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is produced by annealing process. I is soft, tough and easily machined metal

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

Contains 1.7 to 3.5% carbon in Free State and is obtained by the slow cooling of molten cast iron

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is produced by annealing process. I is soft, tough and easily machined metal

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Engineering Materials

Engineering Materials Shock resistance of steel is increased by adding

Engineering Materials Tensile strength of steel can be safely increased by

Engineering Materials Smelting is the process of

Engineering Materials The machinability of steel is increased by

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

Engineering Materials Grey cast iron

Engineering Materials
Shock resistance of steel is increased by adding

Engineering Materials
Tensile strength of steel can be safely increased by

Engineering Materials
Smelting is the process of

Engineering Materials
The machinability of steel is increased by

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

Engineering Materials
Grey cast iron