The transistor is made of

Engineering Materials
The transistor is made of

Silver

Germanium

Gold

Copper

Silver

Germanium

Gold

Copper

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Engineering Materials
Thermoplastic materials are those materials which

Do not become hard with the application of heat and pressure and no chemical change occurs

Are flexible and can withstand considerable wear under suitable conditions

Are used as a friction lining for clutches and brakes

Are formed into shape under heat and pressure and results in a permanently hard product

Do not become hard with the application of heat and pressure and no chemical change occurs

Are flexible and can withstand considerable wear under suitable conditions

Are used as a friction lining for clutches and brakes

Are formed into shape under heat and pressure and results in a permanently hard product

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Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

50 : 20 : 20 : 10

30 : 20 : 30 : 20

50 : 20 : 10 : 20

40 : 30 : 20 : 10

50 : 20 : 20 : 10

30 : 20 : 30 : 20

50 : 20 : 10 : 20

40 : 30 : 20 : 10

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Engineering Materials
The crystal structure of brass is

Orthorhombic crystalline structure

H.C.P.

F.C.C.

C.C.

Orthorhombic crystalline structure

H.C.P.

F.C.C.

C.C.

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Engineering Materials
A cold chisel is made of

High carbon

Mild steel

H.S.S.

Cast iron

High carbon

Mild steel

H.S.S.

Cast iron

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

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

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

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Engineering Materials

Engineering Materials The transistor is made of

Engineering Materials Thermoplastic materials are those materials which

Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

Engineering Materials The crystal structure of brass is

Engineering Materials A cold chisel is made of

Engineering Materials White cast iron

Engineering Materials
The transistor is made of

Engineering Materials
Thermoplastic materials are those materials which

Engineering Materials
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio

Engineering Materials
The crystal structure of brass is

Engineering Materials
A cold chisel is made of

Engineering Materials
White cast iron