Induction hardening is basically a

Engineering Materials
Induction hardening is basically a

Surface hardening process

Carburising process

None of these

Core hardening process

Surface hardening process

Carburising process

None of these

Core hardening process

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Engineering Materials
The material widely used for making pendulums of clocks is

Heat resisting steel

Nickel steel

Stainless steel

High speed steel

Heat resisting steel

Nickel steel

Stainless steel

High speed steel

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Engineering Materials
Smelting is the process of

Reducing the ore with carbon in the presence of a flux

All of these

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

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

All of these

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

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

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Engineering Materials
According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

0.6 to 0.8%

0.35 to 0.45%

0.4 to 0.6%

0.0004

0.6 to 0.8%

0.35 to 0.45%

0.4 to 0.6%

0.0004

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Engineering Materials
Super conduction by metals is observed in the temperature range of

Above 100°K

Around 0°C

Below 10°K

Around 100°C

Above 100°K

Around 0°C

Below 10°K

Around 100°C

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Engineering Materials
Malleable cast iron

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

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

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

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

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

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

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

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

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Engineering Materials

Engineering Materials Induction hardening is basically a

Engineering Materials The material widely used for making pendulums of clocks is

Engineering Materials Smelting is the process of

Engineering Materials According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

Engineering Materials Super conduction by metals is observed in the temperature range of

Engineering Materials Malleable cast iron

Engineering Materials
Induction hardening is basically a

Engineering Materials
The material widely used for making pendulums of clocks is

Engineering Materials
Smelting is the process of

Engineering Materials
According to Indian standard specifications, plain carbon steel designated by 40 C8 means that the carbon content is

Engineering Materials
Super conduction by metals is observed in the temperature range of

Engineering Materials
Malleable cast iron