The blade of a power saw is made of

Engineering Materials
The blade of a power saw is made of

Malleable cast iron

Stainless steel

High speed steel

Boron steel

Malleable cast iron

Stainless steel

High speed steel

Boron steel

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Engineering Materials
Which of the following display properties similar to that of steel?

Blackheart cast iron

None of these

Whiteheart cast iron

Both (A) and (B)

Blackheart cast iron

None of these

Whiteheart cast iron

Both (A) and (B)

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Engineering Materials
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

None of these

Hypereutectic cast irons

Hypoeutectic cast irons

Eutectic cast irons

None of these

Hypereutectic cast irons

Hypoeutectic cast irons

Eutectic cast irons

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Engineering Materials
Ductile 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

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 creium) in the ladle. Graphite is in 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

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Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

30° C to 50° C below upper critical temperature

30° C to 50° C above upper critical temperature

30° C to 50° C above lower critical temperature

30° C to 50° C below lower critical temperature

30° C to 50° C below upper critical temperature

30° C to 50° C above upper critical temperature

30° C to 50° C above lower critical temperature

30° C to 50° C below lower critical temperature

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Engineering Materials
The machinability of steel is increased by

Sulphur, graphite and aluminium

Phosphorous and aluminium

Phosphorous, lead and sulphur

Silicon and sulphur

Sulphur, graphite and aluminium

Phosphorous and aluminium

Phosphorous, lead and sulphur

Silicon and sulphur

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Engineering Materials

Engineering Materials The blade of a power saw is made of

Engineering Materials Which of the following display properties similar to that of steel?

Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

Engineering Materials Ductile cast iron

Engineering Materials The temperature required for full annealing in hypereutectoid steel is

Engineering Materials The machinability of steel is increased by

Engineering Materials
The blade of a power saw is made of

Engineering Materials
Which of the following display properties similar to that of steel?

Engineering Materials
Iron-carbon alloys containing 1.7 to 4.3% carbon are known as

Engineering Materials
Ductile cast iron

Engineering Materials
The temperature required for full annealing in hypereutectoid steel is

Engineering Materials
The machinability of steel is increased by