Cast iron is characterized by minimum of following percentage of carbon

Engineering Materials
Cast iron is characterized by minimum of following percentage of carbon

0.008

0.02

0.013

0.002

0.008

0.02

0.013

0.002

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Engineering Materials
Steel contains

Elements like phosphorus, sulphur and silicon in varying quantities

50% or more iron

Alloying elements like chromium, tungsten nickel and copper

80% or more iron

Elements like phosphorus, sulphur and silicon in varying quantities

50% or more iron

Alloying elements like chromium, tungsten nickel and copper

80% or more iron

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Engineering Materials
The presence of hydrogen in steel causes

Improved Weldability

Corrosion resistance

Embrittlement

Reduced neutron absorption cross-section

Improved Weldability

Corrosion resistance

Embrittlement

Reduced neutron absorption cross-section

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Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Reduce segregation in casting

Improve mechanical properties

Induce stresses

Refine grain structure

Reduce segregation in casting

Improve mechanical properties

Induce stresses

Refine grain structure

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Engineering Materials
Which of the following represents the allotropic forms of iron?

Alpha iron and beta iron

Alpha iron, gamma from and delta iron

Alpha iron, beta iron and gamma iron

Body centered cubic iron and face centered cubic iron

Alpha iron and beta iron

Alpha iron, gamma from and delta iron

Alpha iron, beta iron and gamma iron

Body centered cubic iron and face centered cubic iron

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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

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 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

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

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 and is obtained by cooling rapidly. It is almost unmachinable

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Engineering Materials

Engineering Materials Cast iron is characterized by minimum of following percentage of carbon

Engineering Materials Steel contains

Engineering Materials The presence of hydrogen in steel causes

Engineering Materials Which is false statement about normalizing? Normalizing is done to

Engineering Materials Which of the following represents the allotropic forms of iron?

Engineering Materials White cast iron

Engineering Materials
Cast iron is characterized by minimum of following percentage of carbon

Engineering Materials
Steel contains

Engineering Materials
The presence of hydrogen in steel causes

Engineering Materials
Which is false statement about normalizing? Normalizing is done to

Engineering Materials
Which of the following represents the allotropic forms of iron?

Engineering Materials
White cast iron