Tensile strength of steel can be safely increased by

Engineering Materials
Tensile strength of steel can be safely increased by

Adding carbon up to 2.8%

Adding carbon up to 0.83%

Adding small quantities of copper

Adding carbon up to 6.3%

Adding carbon up to 2.8%

Adding carbon up to 0.83%

Adding small quantities of copper

Adding carbon up to 6.3%

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
If a refractory contains high content of silicon, it means refractory is

Brittle

Acidic

Neutral

Basic

Brittle

Acidic

Neutral

Basic

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Smelting is the process of

Removing the impurities like clay, sand etc. from the iron ore by washing with water

Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

All of these

Reducing the ore with carbon in the presence of a flux

Removing the impurities like clay, sand etc. from the iron ore by washing with water

Expelling moisture, carbon dioxide, sulphur and arsenic from the iron ore by heating in shallow kilns

All of these

Reducing the ore with carbon in the presence of a flux

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
White cast iron contains carbon in the form of

Graphite

White carbon

Free carbon

Cementite

Graphite

White carbon

Free carbon

Cementite

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
White cast iron

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

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

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials
Ductility of a material can be defined as

Ability to undergo large permanent deformations in compression

All of these

Ability to undergo large permanent deformations in tension

Ability to recover its original form

Ability to undergo large permanent deformations in compression

All of these

Ability to undergo large permanent deformations in tension

Ability to recover its original form

ANSWER DOWNLOAD EXAMIANS APP

Engineering Materials

Engineering Materials Tensile strength of steel can be safely increased by

Engineering Materials If a refractory contains high content of silicon, it means refractory is

Engineering Materials Smelting is the process of

Engineering Materials White cast iron contains carbon in the form of

Engineering Materials White cast iron

Engineering Materials Ductility of a material can be defined as

Engineering Materials
Tensile strength of steel can be safely increased by

Engineering Materials
If a refractory contains high content of silicon, it means refractory is

Engineering Materials
Smelting is the process of

Engineering Materials
White cast iron contains carbon in the form of

Engineering Materials
White cast iron

Engineering Materials
Ductility of a material can be defined as