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Engineering Materials

Engineering Materials
Cartridge brass can be

Drawn into wires
Formed into tube
Any one of these
Cold rolled into sheets

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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 average grain size is a minimum
The grain size increases very rapidly
There is no change in grain size

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Engineering Materials
The electric process of steel making is especially adapted to

All of these
Magnet steel
Alloy and carbon tool steel
High speed tool steel

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Engineering Materials
Steel containing ferrite and pearlite is

Hard and tough
Hard
Tough
Soft

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Engineering Materials
A reversible change in the atomic structure of the steel with a corresponding change in the properties is known as

Precipitation
Recrystallization
Allotropic change
Heat treatment

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Engineering Materials
The percentage of carbon in low carbon steel is

0.15%
0.5%
0.3%
0.05%

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