Which is the false statement about wrought iron? It has

Engineering Materials
Which is the false statement about wrought iron? It has

High resistance to rusting and corrosion

High ductility

Ability of hold protective coating

Uniform strength in all directions

High resistance to rusting and corrosion

High ductility

Ability of hold protective coating

Uniform strength in all directions

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Engineering Materials
In which of the following cases, consideration of creep is important

Cast iron pipes

Flywheel of steam engine

Gas turbine blades

Cycle chains

Cast iron pipes

Flywheel of steam engine

Gas turbine blades

Cycle chains

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Engineering Materials
Recrystallization temperature is one

At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated

At which change of allotropic form takes place

At which crystals grow bigger in size

At which crystals first start forming from molten metal when it is cooled

At which new spherical crystals first begin to form from the old deformed one when a strained metal is heated

At which change of allotropic form takes place

At which crystals grow bigger in size

At which crystals first start forming from molten metal when it is cooled

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Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Coordination number

Space lattice

None of these

Atomic packing factor

Coordination number

Space lattice

None of these

Atomic packing factor

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Engineering Materials
White 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

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

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Engineering Materials
Process of Austempering results in

Carburised structure

Lamellar layers of carbide distributed throughout the structure

Formation of bainite structure

Martenistic structure

Carburised structure

Lamellar layers of carbide distributed throughout the structure

Formation of bainite structure

Martenistic structure

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Engineering Materials

Engineering Materials Which is the false statement about wrought iron? It has

Engineering Materials In which of the following cases, consideration of creep is important

Engineering Materials Recrystallization temperature is one

Engineering Materials The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Engineering Materials White cast iron

Engineering Materials Process of Austempering results in

Engineering Materials
Which is the false statement about wrought iron? It has

Engineering Materials
In which of the following cases, consideration of creep is important

Engineering Materials
Recrystallization temperature is one

Engineering Materials
The ratio of the volume occupied by the atoms to the total volume of the unit cell is called

Engineering Materials
White cast iron

Engineering Materials
Process of Austempering results in