The property of a material which enables it to retain the deformation permanently, is called

Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Plasticity

Ductility

Malleability

Brittleness

Plasticity

Ductility

Malleability

Brittleness

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Engineering Materials
The charge of the blast furnace consists of

Calcined ore, coke and limestone all in equal parts

Calcined ore (1 part), coke (8 parts) and limestone (4 parts)

Calcined ore (4 parts), coke (1 part) and limestone (8 parts)

Calcined ore (8 parts), coke (4 parts) and limestone (1 part)

Calcined ore, coke and limestone all in equal parts

Calcined ore (1 part), coke (8 parts) and limestone (4 parts)

Calcined ore (4 parts), coke (1 part) and limestone (8 parts)

Calcined ore (8 parts), coke (4 parts) and limestone (1 part)

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Engineering Materials
Ductile cast iron

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

Is also known as chilled cast iron and 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 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

Is also known as chilled cast iron and 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 of magnesium (or creium) in the ladle. Graphite is in nodular or spheroidal form and is well dispersed throughout the material

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Engineering Materials
Sulphur in cast iron

Increases hardness and brittleness

Makes the iron soft and easily machinable

Make the iron white and hard

Aids fusibility and fluidity

Increases hardness and brittleness

Makes the iron soft and easily machinable

Make the iron white and hard

Aids fusibility and fluidity

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Engineering Materials
Gamma-iron occurs between the temperature ranges of

600°C to 900°C

900°C to 1400°C

1400°C to 1530°C

400°C to 600°C

600°C to 900°C

900°C to 1400°C

1400°C to 1530°C

400°C to 600°C

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Engineering Materials
Which is false statement about annealing? Annealing is done to

Improve machining characteristic

Soften material

Harden steel slightly

Relieve stresses

Improve machining characteristic

Soften material

Harden steel slightly

Relieve stresses

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Engineering Materials

Engineering Materials The property of a material which enables it to retain the deformation permanently, is called

Engineering Materials The charge of the blast furnace consists of

Engineering Materials Ductile cast iron

Engineering Materials Sulphur in cast iron

Engineering Materials Gamma-iron occurs between the temperature ranges of

Engineering Materials Which is false statement about annealing? Annealing is done to

Engineering Materials
The property of a material which enables it to retain the deformation permanently, is called

Engineering Materials
The charge of the blast furnace consists of

Engineering Materials
Ductile cast iron

Engineering Materials
Sulphur in cast iron

Engineering Materials
Gamma-iron occurs between the temperature ranges of

Engineering Materials
Which is false statement about annealing? Annealing is done to