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

Ductility

Brittleness

Plasticity

Malleability

Ductility

Brittleness

Plasticity

Malleability

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Engineering Materials
Which of the following is an amorphous material?

Silver

Glass

Lead

Mica

Silver

Glass

Lead

Mica

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Engineering Materials
The strength is the ability of a material to resist

None of these

Deformation under stress

Externally applied forces with breakdown or yielding

Fracture due to high impact loads

None of these

Deformation under stress

Externally applied forces with breakdown or yielding

Fracture due to high impact loads

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Engineering Materials
Tensile strength of steel can be safely increased by

Adding small quantities of copper

Adding carbon up to 2.8%

Adding carbon up to 6.3%

Adding carbon up to 0.83%

Adding small quantities of copper

Adding carbon up to 2.8%

Adding carbon up to 6.3%

Adding carbon up to 0.83%

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Engineering Materials
In spheroidising process, the steel is

Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C

Heated up to the lower critical temperature and then cooled in still air

Heated below the lower critical temperature and then cooled slowly

None of these

Heated slightly above the lower critical temperature and then cooled slowly to a temperature of 600°C

Heated up to the lower critical temperature and then cooled in still air

Heated below the lower critical temperature and then cooled slowly

None of these

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Engineering Materials
White cast iron

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

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

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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 Which of the following is an amorphous material?

Engineering Materials The strength is the ability of a material to resist

Engineering Materials Tensile strength of steel can be safely increased by

Engineering Materials In spheroidising process, the steel is

Engineering Materials White cast iron

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

Engineering Materials
Which of the following is an amorphous material?

Engineering Materials
The strength is the ability of a material to resist

Engineering Materials
Tensile strength of steel can be safely increased by

Engineering Materials
In spheroidising process, the steel is

Engineering Materials
White cast iron