Bronze is an alloy of

Engineering Materials
Bronze is an alloy of

Copper, tin and zinc

None of these

Copper and zinc

Copper and tin

Copper, tin and zinc

None of these

Copper and zinc

Copper and tin

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Engineering Materials
The brown smoke during the operation of a Bessemer converter indicates that the

The converter must be titled to remove the contents of the converter

Air is burning out silicon and manganese

The brown smoke does not occur during the operation of a Bessemer converter

Silicon and manganese has burnt and carbon has started oxidizing

The converter must be titled to remove the contents of the converter

Air is burning out silicon and manganese

The brown smoke does not occur during the operation of a Bessemer converter

Silicon and manganese has burnt and carbon has started oxidizing

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Engineering Materials
For a steel containing 0.8% carbon

There is only one critical point

There is no critical point

There are two critical points

There can be any number of critical points

There is only one critical point

There is no critical point

There are two critical points

There can be any number of critical points

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Engineering Materials
Which of the following material has nearly zero coefficient of expansion?

Stainless steel

Heat resisting steel

Invar

High speed steel

Stainless steel

Heat resisting steel

Invar

High speed steel

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Engineering Materials
Malleable cast iron

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 cerium) in the ladle. Graphite is in the 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 cerium) in the ladle. Graphite is in the nodular or spheroidal form and is well dispersed throughout the material

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Engineering Materials
Which of the following metal is used for nuclear energy?

Uranium

Thorium

Niobium

All of these

Uranium

Thorium

Niobium

All of these

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Engineering Materials

Engineering Materials Bronze is an alloy of

Engineering Materials The brown smoke during the operation of a Bessemer converter indicates that the

Engineering Materials For a steel containing 0.8% carbon

Engineering Materials Which of the following material has nearly zero coefficient of expansion?

Engineering Materials Malleable cast iron

Engineering Materials Which of the following metal is used for nuclear energy?

Engineering Materials
Bronze is an alloy of

Engineering Materials
The brown smoke during the operation of a Bessemer converter indicates that the

Engineering Materials
For a steel containing 0.8% carbon

Engineering Materials
Which of the following material has nearly zero coefficient of expansion?

Engineering Materials
Malleable cast iron

Engineering Materials
Which of the following metal is used for nuclear energy?