Grey cast iron | EXAMIANS

Engineering Materials
Grey 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

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 is obtained by cooling rapidly. It is almost unmachinable

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

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

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 is obtained by cooling rapidly. It is almost unmachinable

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

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

Copper

Chromium

Nickel

Magnesium

Copper

Chromium

Nickel

Magnesium

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Engineering Materials
Dye penetrant method is generally used to locate

Superficial defects

Temporary defects

Core defects

Surface defects

Superficial defects

Temporary defects

Core defects

Surface defects

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Engineering Materials
Steel contains

Alloying elements like chromium, tungsten nickel and copper

Elements like phosphorus, sulphur and silicon in varying quantities

80% or more iron

50% or more iron

Alloying elements like chromium, tungsten nickel and copper

Elements like phosphorus, sulphur and silicon in varying quantities

80% or more iron

50% or more iron

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Engineering Materials
Which of the following is the binding material in cemented carbides?

Vanadium

Iron

Cobalt

Nickel

Vanadium

Iron

Cobalt

Nickel

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Engineering Materials
Process of Austempering results in

Lamellar layers of carbide distributed throughout the structure

Carburised structure

Formation of bainite structure

Martenistic structure

Lamellar layers of carbide distributed throughout the structure

Carburised structure

Formation of bainite structure

Martenistic structure

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Engineering Materials

Engineering Materials Grey cast iron

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

Engineering Materials Dye penetrant method is generally used to locate

Engineering Materials Steel contains

Engineering Materials Which of the following is the binding material in cemented carbides?

Engineering Materials Process of Austempering results in

Engineering Materials
Grey cast iron

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

Engineering Materials
Dye penetrant method is generally used to locate

Engineering Materials
Steel contains

Engineering Materials
Which of the following is the binding material in cemented carbides?

Engineering Materials
Process of Austempering results in