In which of the following cases, consideration of creep is important

Engineering Materials
In which of the following cases, consideration of creep is important

Cycle chains

Flywheel of steam engine

Cast iron pipes

Gas turbine blades

Cycle chains

Flywheel of steam engine

Cast iron pipes

Gas turbine blades

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Engineering Materials
The toughness of a material __________ when it is heated.

None of these

Increases

Remain same

Decreases

None of these

Increases

Remain same

Decreases

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Engineering Materials
The compressive strength of cast iron is __________that of its tensile strength.

None of these

Less than

Equal to

More than

None of these

Less than

Equal to

More than

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Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Silicon

Sulphur

Manganese

Phosphorus

Silicon

Sulphur

Manganese

Phosphorus

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Engineering Materials
When low carbon steel is heated up to lower critical temperature

The grain size first increases and then decreases very rapidly

The grain size increases very rapidly

There is no change in grain size

The average grain size is a minimum

The grain size first increases and then decreases very rapidly

The grain size increases very rapidly

There is no change in grain size

The average grain size is a minimum

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Engineering Materials
Grey 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. I is soft, tough and easily machined metal

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is also known as chilled cast iron 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. I is soft, tough and easily machined metal

Is produced by small additions o magnesium (or cerium) in the ladle Graphite is in nodular or spheroidal form and is well dispersed throughout the material

Is also known as chilled cast iron is obtained by cooling rapidly. It is almost unmachinable

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Engineering Materials

Engineering Materials In which of the following cases, consideration of creep is important

Engineering Materials The toughness of a material __________ when it is heated.

Engineering Materials The compressive strength of cast iron is __________that of its tensile strength.

Engineering Materials Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials When low carbon steel is heated up to lower critical temperature

Engineering Materials Grey cast iron

Engineering Materials
In which of the following cases, consideration of creep is important

Engineering Materials
The toughness of a material __________ when it is heated.

Engineering Materials
The compressive strength of cast iron is __________that of its tensile strength.

Engineering Materials
Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities?

Engineering Materials
When low carbon steel is heated up to lower critical temperature

Engineering Materials
Grey cast iron