Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Phosphorus

Manganese

Sulphur

Silicon

Phosphorus

Manganese

Sulphur

Silicon

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Engineering Materials
Carbon steel is

Extensively used for making cutting tools

An alloy of iron and carbon with varying quantities of phosphorus and sulphur

Refined from cast iron

Made by adding carbon in steel

Extensively used for making cutting tools

An alloy of iron and carbon with varying quantities of phosphorus and sulphur

Refined from cast iron

Made by adding carbon in steel

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Engineering Materials
A reversible change in the atomic structure of steel with corresponding change in the properties is known as

Allotropic change

Physical change

Molecular change

Solidus change

Allotropic change

Physical change

Molecular change

Solidus change

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Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Cast iron

Asbestos cement

Vitrified clay

Concrete

Cast iron

Asbestos cement

Vitrified clay

Concrete

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Engineering Materials
Foundry crucible is made of

Mild steel

Lead

Graphite

German silver

Mild steel

Lead

Graphite

German silver

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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

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

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

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

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

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Engineering Materials

Engineering Materials Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials Carbon steel is

Engineering Materials A reversible change in the atomic structure of steel with corresponding change in the properties is known as

Engineering Materials Lead is poured into the joint between two pipes. These pipes may be made of

Engineering Materials Foundry crucible is made of

Engineering Materials Ductile cast iron

Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials
Carbon steel is

Engineering Materials
A reversible change in the atomic structure of steel with corresponding change in the properties is known as

Engineering Materials
Lead is poured into the joint between two pipes. These pipes may be made of

Engineering Materials
Foundry crucible is made of

Engineering Materials
Ductile cast iron