The electric process of steel making is especially adapted to

Engineering Materials
The electric process of steel making is especially adapted to

All of these

High speed tool steel

Alloy and carbon tool steel

Magnet steel

All of these

High speed tool steel

Alloy and carbon tool steel

Magnet steel

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Engineering Materials
When medium carbon steel is heated to coarsening temperature

The grain size first increases and then decreases very rapidly

There is no change in grain size

The average grain size is a minimum

The grain size increases very rapidly

The grain size first increases and then decreases very rapidly

There is no change in grain size

The average grain size is a minimum

The grain size increases very rapidly

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Engineering Materials
Nodular cast iron is produced by adding ________ to the molten cast iron.

Copper

Magnesium

Chromium

Nickel

Copper

Magnesium

Chromium

Nickel

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Engineering Materials
Ductile 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 creium) in the ladle. Graphite is in 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 creium) in the ladle. Graphite is in 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
Taps dies and drills contain carbon

Above 1%

Above 2.2%

Below 0.5%

Below 1%

Above 1%

Above 2.2%

Below 0.5%

Below 1%

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Engineering Materials
Admiralty gun metal contains

63 to 67% nickel and 30% copper

Alloy of tin, lead and cadmium

88% copper, 10% tin and rest zinc

Iron scrap and zinc

63 to 67% nickel and 30% copper

Alloy of tin, lead and cadmium

88% copper, 10% tin and rest zinc

Iron scrap and zinc

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Engineering Materials

Engineering Materials The electric process of steel making is especially adapted to

Engineering Materials When medium carbon steel is heated to coarsening temperature

Engineering Materials Nodular cast iron is produced by adding ________ to the molten cast iron.

Engineering Materials Ductile cast iron

Engineering Materials Taps dies and drills contain carbon

Engineering Materials Admiralty gun metal contains

Engineering Materials
The electric process of steel making is especially adapted to

Engineering Materials
When medium carbon steel is heated to coarsening temperature

Engineering Materials
Nodular cast iron is produced by adding ________ to the molten cast iron.

Engineering Materials
Ductile cast iron

Engineering Materials
Taps dies and drills contain carbon

Engineering Materials
Admiralty gun metal contains