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Engineering Materials

Engineering Materials
Tungsten in high speed steel provides

Hot hardness
Sharp cutting edge
Wear resistance
Toughness

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

Decreases
Increases
Remain same
None of these

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Engineering Materials
Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements?

Phosphor bronze
Babbitt metal
Monel metal
Nichrome

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Engineering Materials
In the lower part of the blast furnace (zone of fusion), the temperature is

400° to 700°C
800°C to 1000°C
1200°C to 1300°C
1500°C to 1700°C

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Engineering Materials
The material in which the atoms are arranged regularly in some directions but not in others, is called

Crystalline material
Amorphous material
Mesomorphous material
None of these

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Engineering Materials
Cold rolled steel sheets contain carbon of the following order

0.004
0.001
0.006
0.002

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